./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-32.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6497de01 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff9b14d4-6dfc-48d9-91e6-a966d8bf8b83/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff9b14d4-6dfc-48d9-91e6-a966d8bf8b83/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff9b14d4-6dfc-48d9-91e6-a966d8bf8b83/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff9b14d4-6dfc-48d9-91e6-a966d8bf8b83/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-32.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff9b14d4-6dfc-48d9-91e6-a966d8bf8b83/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff9b14d4-6dfc-48d9-91e6-a966d8bf8b83/bin/uautomizer-verify-LYvppIcaGC --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d4efba5d8035d5b89a6fee2af18255a7435db1834e066c2b81c99247161e78c7 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-24 00:45:14,037 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 00:45:14,125 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff9b14d4-6dfc-48d9-91e6-a966d8bf8b83/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-24 00:45:14,139 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 00:45:14,139 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-24 00:45:14,170 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 00:45:14,171 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-24 00:45:14,171 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-24 00:45:14,171 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-24 00:45:14,172 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-24 00:45:14,172 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 00:45:14,172 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-24 00:45:14,172 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 00:45:14,172 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 00:45:14,172 INFO L153 SettingsManager]: * Use SBE=true [2024-11-24 00:45:14,173 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 00:45:14,173 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 00:45:14,173 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-24 00:45:14,173 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-24 00:45:14,173 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-24 00:45:14,173 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 00:45:14,173 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 00:45:14,174 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 00:45:14,174 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 00:45:14,174 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-24 00:45:14,174 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 00:45:14,174 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 00:45:14,174 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 00:45:14,174 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-24 00:45:14,174 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 00:45:14,175 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 00:45:14,175 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 00:45:14,175 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:45:14,175 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 00:45:14,175 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 00:45:14,175 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 00:45:14,175 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 00:45:14,175 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:45:14,176 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 00:45:14,176 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 00:45:14,176 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-24 00:45:14,176 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 00:45:14,176 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-24 00:45:14,176 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-24 00:45:14,176 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-24 00:45:14,176 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-24 00:45:14,176 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-24 00:45:14,177 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-24 00:45:14,177 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff9b14d4-6dfc-48d9-91e6-a966d8bf8b83/bin/uautomizer-verify-LYvppIcaGC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d4efba5d8035d5b89a6fee2af18255a7435db1834e066c2b81c99247161e78c7 [2024-11-24 00:45:14,498 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 00:45:14,507 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 00:45:14,510 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 00:45:14,513 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 00:45:14,513 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 00:45:14,514 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff9b14d4-6dfc-48d9-91e6-a966d8bf8b83/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-32.i [2024-11-24 00:45:17,677 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff9b14d4-6dfc-48d9-91e6-a966d8bf8b83/bin/uautomizer-verify-LYvppIcaGC/data/9e1812a52/9888df85a6414c6abcca136fb6f29bea/FLAG4eae83240 [2024-11-24 00:45:18,036 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 00:45:18,036 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff9b14d4-6dfc-48d9-91e6-a966d8bf8b83/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-32.i [2024-11-24 00:45:18,061 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff9b14d4-6dfc-48d9-91e6-a966d8bf8b83/bin/uautomizer-verify-LYvppIcaGC/data/9e1812a52/9888df85a6414c6abcca136fb6f29bea/FLAG4eae83240 [2024-11-24 00:45:18,083 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff9b14d4-6dfc-48d9-91e6-a966d8bf8b83/bin/uautomizer-verify-LYvppIcaGC/data/9e1812a52/9888df85a6414c6abcca136fb6f29bea [2024-11-24 00:45:18,086 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 00:45:18,088 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 00:45:18,090 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 00:45:18,090 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 00:45:18,102 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 00:45:18,103 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:45:18" (1/1) ... [2024-11-24 00:45:18,104 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77c9ee7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:45:18, skipping insertion in model container [2024-11-24 00:45:18,105 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:45:18" (1/1) ... [2024-11-24 00:45:18,131 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 00:45:18,321 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff9b14d4-6dfc-48d9-91e6-a966d8bf8b83/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-32.i[915,928] [2024-11-24 00:45:18,405 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 00:45:18,426 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 00:45:18,440 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff9b14d4-6dfc-48d9-91e6-a966d8bf8b83/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-32.i[915,928] [2024-11-24 00:45:18,476 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 00:45:18,494 INFO L204 MainTranslator]: Completed translation [2024-11-24 00:45:18,495 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:45:18 WrapperNode [2024-11-24 00:45:18,495 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 00:45:18,496 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 00:45:18,496 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 00:45:18,496 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 00:45:18,503 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:45:18" (1/1) ... [2024-11-24 00:45:18,517 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:45:18" (1/1) ... [2024-11-24 00:45:18,557 INFO L138 Inliner]: procedures = 26, calls = 29, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 190 [2024-11-24 00:45:18,557 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 00:45:18,558 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 00:45:18,558 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 00:45:18,558 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 00:45:18,572 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:45:18" (1/1) ... [2024-11-24 00:45:18,572 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:45:18" (1/1) ... [2024-11-24 00:45:18,576 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:45:18" (1/1) ... [2024-11-24 00:45:18,592 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-24 00:45:18,592 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:45:18" (1/1) ... [2024-11-24 00:45:18,593 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:45:18" (1/1) ... [2024-11-24 00:45:18,600 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:45:18" (1/1) ... [2024-11-24 00:45:18,602 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:45:18" (1/1) ... [2024-11-24 00:45:18,606 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:45:18" (1/1) ... [2024-11-24 00:45:18,608 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:45:18" (1/1) ... [2024-11-24 00:45:18,610 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:45:18" (1/1) ... [2024-11-24 00:45:18,614 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 00:45:18,615 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 00:45:18,615 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 00:45:18,615 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 00:45:18,616 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:45:18" (1/1) ... [2024-11-24 00:45:18,622 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:45:18,635 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff9b14d4-6dfc-48d9-91e6-a966d8bf8b83/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:45:18,656 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff9b14d4-6dfc-48d9-91e6-a966d8bf8b83/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-24 00:45:18,660 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff9b14d4-6dfc-48d9-91e6-a966d8bf8b83/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-24 00:45:18,691 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 00:45:18,691 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-24 00:45:18,692 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-24 00:45:18,692 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-24 00:45:18,692 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 00:45:18,693 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 00:45:18,784 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 00:45:18,787 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 00:45:19,254 INFO L? ?]: Removed 33 outVars from TransFormulas that were not future-live. [2024-11-24 00:45:19,254 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 00:45:19,265 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 00:45:19,266 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-24 00:45:19,266 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:45:19 BoogieIcfgContainer [2024-11-24 00:45:19,266 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 00:45:19,272 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-24 00:45:19,272 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-24 00:45:19,278 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-24 00:45:19,279 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 12:45:18" (1/3) ... [2024-11-24 00:45:19,280 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1aa2ed6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:45:19, skipping insertion in model container [2024-11-24 00:45:19,281 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:45:18" (2/3) ... [2024-11-24 00:45:19,281 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1aa2ed6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:45:19, skipping insertion in model container [2024-11-24 00:45:19,281 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:45:19" (3/3) ... [2024-11-24 00:45:19,283 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-1loop_file-32.i [2024-11-24 00:45:19,301 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-24 00:45:19,304 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_loopvsstraightlinecode_25-1loop_file-32.i that has 2 procedures, 80 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-24 00:45:19,382 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 00:45:19,401 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@17658884, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 00:45:19,401 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-24 00:45:19,406 INFO L276 IsEmpty]: Start isEmpty. Operand has 80 states, 61 states have (on average 1.4426229508196722) internal successors, (88), 62 states have internal predecessors, (88), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-24 00:45:19,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-24 00:45:19,422 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:45:19,423 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:45:19,423 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:45:19,429 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:45:19,430 INFO L85 PathProgramCache]: Analyzing trace with hash -1476505627, now seen corresponding path program 1 times [2024-11-24 00:45:19,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:45:19,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1294980871] [2024-11-24 00:45:19,441 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:45:19,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:45:19,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:45:19,800 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 450 trivial. 0 not checked. [2024-11-24 00:45:19,800 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:45:19,800 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1294980871] [2024-11-24 00:45:19,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1294980871] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:45:19,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [918180513] [2024-11-24 00:45:19,801 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:45:19,802 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:45:19,802 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff9b14d4-6dfc-48d9-91e6-a966d8bf8b83/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:45:19,804 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff9b14d4-6dfc-48d9-91e6-a966d8bf8b83/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:45:19,809 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff9b14d4-6dfc-48d9-91e6-a966d8bf8b83/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-24 00:45:20,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:45:20,051 INFO L256 TraceCheckSpWp]: Trace formula consists of 260 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-24 00:45:20,063 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:45:20,086 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 450 trivial. 0 not checked. [2024-11-24 00:45:20,087 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:45:20,087 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [918180513] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:45:20,087 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 00:45:20,087 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-24 00:45:20,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334557084] [2024-11-24 00:45:20,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:45:20,098 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-24 00:45:20,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:45:20,125 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-24 00:45:20,126 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-24 00:45:20,128 INFO L87 Difference]: Start difference. First operand has 80 states, 61 states have (on average 1.4426229508196722) internal successors, (88), 62 states have internal predecessors, (88), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 2 states, 2 states have (on average 18.0) internal successors, (36), 2 states have internal predecessors, (36), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-24 00:45:20,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:45:20,162 INFO L93 Difference]: Finished difference Result 157 states and 253 transitions. [2024-11-24 00:45:20,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-24 00:45:20,164 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 18.0) internal successors, (36), 2 states have internal predecessors, (36), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) Word has length 111 [2024-11-24 00:45:20,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:45:20,172 INFO L225 Difference]: With dead ends: 157 [2024-11-24 00:45:20,173 INFO L226 Difference]: Without dead ends: 76 [2024-11-24 00:45:20,178 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-24 00:45:20,183 INFO L435 NwaCegarLoop]: 117 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:45:20,185 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:45:20,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2024-11-24 00:45:20,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2024-11-24 00:45:20,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 58 states have (on average 1.396551724137931) internal successors, (81), 58 states have internal predecessors, (81), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-24 00:45:20,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 113 transitions. [2024-11-24 00:45:20,227 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 113 transitions. Word has length 111 [2024-11-24 00:45:20,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:45:20,227 INFO L471 AbstractCegarLoop]: Abstraction has 76 states and 113 transitions. [2024-11-24 00:45:20,228 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 18.0) internal successors, (36), 2 states have internal predecessors, (36), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-24 00:45:20,228 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 113 transitions. [2024-11-24 00:45:20,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-24 00:45:20,231 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:45:20,231 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:45:20,243 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff9b14d4-6dfc-48d9-91e6-a966d8bf8b83/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-24 00:45:20,432 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff9b14d4-6dfc-48d9-91e6-a966d8bf8b83/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-24 00:45:20,432 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:45:20,433 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:45:20,433 INFO L85 PathProgramCache]: Analyzing trace with hash -751489051, now seen corresponding path program 1 times [2024-11-24 00:45:20,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:45:20,433 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1811021250] [2024-11-24 00:45:20,434 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:45:20,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:45:20,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:45:21,097 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-24 00:45:21,098 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:45:21,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1811021250] [2024-11-24 00:45:21,100 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1811021250] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:45:21,100 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:45:21,100 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:45:21,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367296973] [2024-11-24 00:45:21,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:45:21,101 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:45:21,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:45:21,102 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:45:21,105 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:45:21,105 INFO L87 Difference]: Start difference. First operand 76 states and 113 transitions. Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-24 00:45:21,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:45:21,347 INFO L93 Difference]: Finished difference Result 259 states and 387 transitions. [2024-11-24 00:45:21,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:45:21,352 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 111 [2024-11-24 00:45:21,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:45:21,354 INFO L225 Difference]: With dead ends: 259 [2024-11-24 00:45:21,354 INFO L226 Difference]: Without dead ends: 186 [2024-11-24 00:45:21,355 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:45:21,358 INFO L435 NwaCegarLoop]: 159 mSDtfsCounter, 144 mSDsluCounter, 210 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 369 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-24 00:45:21,359 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 369 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-24 00:45:21,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states. [2024-11-24 00:45:21,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 147. [2024-11-24 00:45:21,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147 states, 112 states have (on average 1.4017857142857142) internal successors, (157), 112 states have internal predecessors, (157), 32 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2024-11-24 00:45:21,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 221 transitions. [2024-11-24 00:45:21,403 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 221 transitions. Word has length 111 [2024-11-24 00:45:21,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:45:21,403 INFO L471 AbstractCegarLoop]: Abstraction has 147 states and 221 transitions. [2024-11-24 00:45:21,404 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-24 00:45:21,408 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 221 transitions. [2024-11-24 00:45:21,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-24 00:45:21,410 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:45:21,410 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:45:21,410 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-24 00:45:21,410 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:45:21,414 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:45:21,414 INFO L85 PathProgramCache]: Analyzing trace with hash 1955130343, now seen corresponding path program 1 times [2024-11-24 00:45:21,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:45:21,414 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1954817024] [2024-11-24 00:45:21,415 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:45:21,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:45:21,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:45:21,812 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-24 00:45:21,815 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:45:21,816 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1954817024] [2024-11-24 00:45:21,816 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1954817024] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:45:21,816 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:45:21,816 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 00:45:21,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1322116577] [2024-11-24 00:45:21,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:45:21,817 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 00:45:21,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:45:21,818 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 00:45:21,819 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:45:21,820 INFO L87 Difference]: Start difference. First operand 147 states and 221 transitions. Second operand has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-24 00:45:22,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:45:22,097 INFO L93 Difference]: Finished difference Result 413 states and 623 transitions. [2024-11-24 00:45:22,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 00:45:22,098 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 111 [2024-11-24 00:45:22,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:45:22,100 INFO L225 Difference]: With dead ends: 413 [2024-11-24 00:45:22,100 INFO L226 Difference]: Without dead ends: 269 [2024-11-24 00:45:22,104 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-24 00:45:22,105 INFO L435 NwaCegarLoop]: 103 mSDtfsCounter, 127 mSDsluCounter, 306 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 409 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-24 00:45:22,108 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 409 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-24 00:45:22,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 269 states. [2024-11-24 00:45:22,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 269 to 195. [2024-11-24 00:45:22,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 143 states have (on average 1.3846153846153846) internal successors, (198), 143 states have internal predecessors, (198), 48 states have call successors, (48), 3 states have call predecessors, (48), 3 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-24 00:45:22,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 294 transitions. [2024-11-24 00:45:22,166 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 294 transitions. Word has length 111 [2024-11-24 00:45:22,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:45:22,167 INFO L471 AbstractCegarLoop]: Abstraction has 195 states and 294 transitions. [2024-11-24 00:45:22,167 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-24 00:45:22,167 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 294 transitions. [2024-11-24 00:45:22,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-24 00:45:22,169 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:45:22,169 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:45:22,172 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-24 00:45:22,172 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:45:22,173 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:45:22,173 INFO L85 PathProgramCache]: Analyzing trace with hash 699575294, now seen corresponding path program 1 times [2024-11-24 00:45:22,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:45:22,175 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902450251] [2024-11-24 00:45:22,175 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:45:22,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:45:22,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:45:23,467 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-24 00:45:23,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:45:23,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1902450251] [2024-11-24 00:45:23,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1902450251] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:45:23,467 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:45:23,468 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 00:45:23,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2063815726] [2024-11-24 00:45:23,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:45:23,468 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 00:45:23,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:45:23,471 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 00:45:23,472 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:45:23,472 INFO L87 Difference]: Start difference. First operand 195 states and 294 transitions. Second operand has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 6 states have internal predecessors, (35), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-24 00:45:24,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:45:24,225 INFO L93 Difference]: Finished difference Result 415 states and 625 transitions. [2024-11-24 00:45:24,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-24 00:45:24,228 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 6 states have internal predecessors, (35), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 112 [2024-11-24 00:45:24,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:45:24,231 INFO L225 Difference]: With dead ends: 415 [2024-11-24 00:45:24,231 INFO L226 Difference]: Without dead ends: 267 [2024-11-24 00:45:24,235 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2024-11-24 00:45:24,236 INFO L435 NwaCegarLoop]: 91 mSDtfsCounter, 226 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 226 SdHoareTripleChecker+Valid, 264 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-24 00:45:24,236 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [226 Valid, 264 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-24 00:45:24,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 267 states. [2024-11-24 00:45:24,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 267 to 251. [2024-11-24 00:45:24,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 251 states, 199 states have (on average 1.407035175879397) internal successors, (280), 199 states have internal predecessors, (280), 48 states have call successors, (48), 3 states have call predecessors, (48), 3 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-24 00:45:24,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 376 transitions. [2024-11-24 00:45:24,299 INFO L78 Accepts]: Start accepts. Automaton has 251 states and 376 transitions. Word has length 112 [2024-11-24 00:45:24,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:45:24,300 INFO L471 AbstractCegarLoop]: Abstraction has 251 states and 376 transitions. [2024-11-24 00:45:24,300 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 6 states have internal predecessors, (35), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-24 00:45:24,300 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 376 transitions. [2024-11-24 00:45:24,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-24 00:45:24,302 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:45:24,302 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:45:24,303 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-24 00:45:24,303 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:45:24,303 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:45:24,303 INFO L85 PathProgramCache]: Analyzing trace with hash -134316110, now seen corresponding path program 1 times [2024-11-24 00:45:24,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:45:24,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668499855] [2024-11-24 00:45:24,304 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:45:24,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:45:24,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:45:24,617 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-24 00:45:24,617 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:45:24,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1668499855] [2024-11-24 00:45:24,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1668499855] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:45:24,618 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:45:24,618 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 00:45:24,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2050352750] [2024-11-24 00:45:24,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:45:24,619 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 00:45:24,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:45:24,619 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 00:45:24,620 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:45:24,620 INFO L87 Difference]: Start difference. First operand 251 states and 376 transitions. Second operand has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-24 00:45:24,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:45:24,858 INFO L93 Difference]: Finished difference Result 578 states and 866 transitions. [2024-11-24 00:45:24,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 00:45:24,859 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 116 [2024-11-24 00:45:24,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:45:24,862 INFO L225 Difference]: With dead ends: 578 [2024-11-24 00:45:24,863 INFO L226 Difference]: Without dead ends: 387 [2024-11-24 00:45:24,865 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-24 00:45:24,867 INFO L435 NwaCegarLoop]: 102 mSDtfsCounter, 110 mSDsluCounter, 299 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 401 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-24 00:45:24,868 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 401 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-24 00:45:24,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 387 states. [2024-11-24 00:45:24,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 387 to 307. [2024-11-24 00:45:24,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 307 states, 255 states have (on average 1.427450980392157) internal successors, (364), 255 states have internal predecessors, (364), 48 states have call successors, (48), 3 states have call predecessors, (48), 3 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-24 00:45:24,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 307 states and 460 transitions. [2024-11-24 00:45:24,918 INFO L78 Accepts]: Start accepts. Automaton has 307 states and 460 transitions. Word has length 116 [2024-11-24 00:45:24,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:45:24,921 INFO L471 AbstractCegarLoop]: Abstraction has 307 states and 460 transitions. [2024-11-24 00:45:24,921 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-24 00:45:24,921 INFO L276 IsEmpty]: Start isEmpty. Operand 307 states and 460 transitions. [2024-11-24 00:45:24,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-11-24 00:45:24,927 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:45:24,927 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:45:24,927 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-24 00:45:24,928 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:45:24,928 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:45:24,928 INFO L85 PathProgramCache]: Analyzing trace with hash 590306506, now seen corresponding path program 1 times [2024-11-24 00:45:24,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:45:24,928 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724635980] [2024-11-24 00:45:24,928 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:45:24,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:45:25,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:45:28,159 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-24 00:45:28,159 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:45:28,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [724635980] [2024-11-24 00:45:28,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [724635980] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:45:28,160 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:45:28,160 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-24 00:45:28,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1292951747] [2024-11-24 00:45:28,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:45:28,161 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-24 00:45:28,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:45:28,164 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-24 00:45:28,164 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-24 00:45:28,165 INFO L87 Difference]: Start difference. First operand 307 states and 460 transitions. Second operand has 9 states, 9 states have (on average 4.444444444444445) internal successors, (40), 9 states have internal predecessors, (40), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-24 00:45:30,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:45:30,777 INFO L93 Difference]: Finished difference Result 682 states and 1022 transitions. [2024-11-24 00:45:30,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-24 00:45:30,778 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.444444444444445) internal successors, (40), 9 states have internal predecessors, (40), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 117 [2024-11-24 00:45:30,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:45:30,782 INFO L225 Difference]: With dead ends: 682 [2024-11-24 00:45:30,782 INFO L226 Difference]: Without dead ends: 491 [2024-11-24 00:45:30,783 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-11-24 00:45:30,784 INFO L435 NwaCegarLoop]: 88 mSDtfsCounter, 53 mSDsluCounter, 549 mSDsCounter, 0 mSdLazyCounter, 295 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 637 SdHoareTripleChecker+Invalid, 295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 295 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-24 00:45:30,784 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 637 Invalid, 295 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 295 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-24 00:45:30,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 491 states. [2024-11-24 00:45:30,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 491 to 399. [2024-11-24 00:45:30,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 399 states, 347 states have (on average 1.4524495677233429) internal successors, (504), 347 states have internal predecessors, (504), 48 states have call successors, (48), 3 states have call predecessors, (48), 3 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-24 00:45:30,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 399 states to 399 states and 600 transitions. [2024-11-24 00:45:30,822 INFO L78 Accepts]: Start accepts. Automaton has 399 states and 600 transitions. Word has length 117 [2024-11-24 00:45:30,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:45:30,822 INFO L471 AbstractCegarLoop]: Abstraction has 399 states and 600 transitions. [2024-11-24 00:45:30,823 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.444444444444445) internal successors, (40), 9 states have internal predecessors, (40), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-24 00:45:30,823 INFO L276 IsEmpty]: Start isEmpty. Operand 399 states and 600 transitions. [2024-11-24 00:45:30,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-11-24 00:45:30,827 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:45:30,827 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:45:30,827 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-24 00:45:30,827 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:45:30,828 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:45:30,828 INFO L85 PathProgramCache]: Analyzing trace with hash 1040529004, now seen corresponding path program 1 times [2024-11-24 00:45:30,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:45:30,828 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1385985916] [2024-11-24 00:45:30,828 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:45:30,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:45:30,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:45:30,958 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-24 00:45:30,958 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:45:30,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1385985916] [2024-11-24 00:45:30,959 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1385985916] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:45:30,959 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:45:30,959 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:45:30,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931685379] [2024-11-24 00:45:30,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:45:30,960 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:45:30,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:45:30,960 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:45:30,960 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:45:30,960 INFO L87 Difference]: Start difference. First operand 399 states and 600 transitions. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-24 00:45:31,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:45:31,028 INFO L93 Difference]: Finished difference Result 762 states and 1142 transitions. [2024-11-24 00:45:31,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:45:31,030 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 117 [2024-11-24 00:45:31,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:45:31,034 INFO L225 Difference]: With dead ends: 762 [2024-11-24 00:45:31,034 INFO L226 Difference]: Without dead ends: 511 [2024-11-24 00:45:31,035 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:45:31,036 INFO L435 NwaCegarLoop]: 110 mSDtfsCounter, 41 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 207 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:45:31,036 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 207 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:45:31,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 511 states. [2024-11-24 00:45:31,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 511 to 447. [2024-11-24 00:45:31,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 447 states, 395 states have (on average 1.4177215189873418) internal successors, (560), 395 states have internal predecessors, (560), 48 states have call successors, (48), 3 states have call predecessors, (48), 3 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-24 00:45:31,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 447 states to 447 states and 656 transitions. [2024-11-24 00:45:31,083 INFO L78 Accepts]: Start accepts. Automaton has 447 states and 656 transitions. Word has length 117 [2024-11-24 00:45:31,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:45:31,084 INFO L471 AbstractCegarLoop]: Abstraction has 447 states and 656 transitions. [2024-11-24 00:45:31,084 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-24 00:45:31,084 INFO L276 IsEmpty]: Start isEmpty. Operand 447 states and 656 transitions. [2024-11-24 00:45:31,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-11-24 00:45:31,086 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:45:31,086 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:45:31,086 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-24 00:45:31,087 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:45:31,087 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:45:31,087 INFO L85 PathProgramCache]: Analyzing trace with hash 1601423756, now seen corresponding path program 1 times [2024-11-24 00:45:31,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:45:31,088 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316809288] [2024-11-24 00:45:31,088 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:45:31,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:45:31,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:45:33,590 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-24 00:45:33,590 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:45:33,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1316809288] [2024-11-24 00:45:33,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1316809288] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:45:33,590 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:45:33,591 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-24 00:45:33,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158661380] [2024-11-24 00:45:33,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:45:33,591 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-24 00:45:33,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:45:33,592 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-24 00:45:33,592 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-24 00:45:33,592 INFO L87 Difference]: Start difference. First operand 447 states and 656 transitions. Second operand has 9 states, 9 states have (on average 4.444444444444445) internal successors, (40), 9 states have internal predecessors, (40), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-24 00:45:37,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:45:37,681 INFO L93 Difference]: Finished difference Result 834 states and 1210 transitions. [2024-11-24 00:45:37,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-24 00:45:37,682 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.444444444444445) internal successors, (40), 9 states have internal predecessors, (40), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 117 [2024-11-24 00:45:37,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:45:37,686 INFO L225 Difference]: With dead ends: 834 [2024-11-24 00:45:37,687 INFO L226 Difference]: Without dead ends: 559 [2024-11-24 00:45:37,688 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-11-24 00:45:37,690 INFO L435 NwaCegarLoop]: 120 mSDtfsCounter, 42 mSDsluCounter, 652 mSDsCounter, 0 mSdLazyCounter, 362 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 772 SdHoareTripleChecker+Invalid, 362 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 362 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:45:37,691 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 772 Invalid, 362 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 362 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-24 00:45:37,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 559 states. [2024-11-24 00:45:37,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 559 to 447. [2024-11-24 00:45:37,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 447 states, 395 states have (on average 1.4177215189873418) internal successors, (560), 395 states have internal predecessors, (560), 48 states have call successors, (48), 3 states have call predecessors, (48), 3 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-24 00:45:37,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 447 states to 447 states and 656 transitions. [2024-11-24 00:45:37,739 INFO L78 Accepts]: Start accepts. Automaton has 447 states and 656 transitions. Word has length 117 [2024-11-24 00:45:37,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:45:37,739 INFO L471 AbstractCegarLoop]: Abstraction has 447 states and 656 transitions. [2024-11-24 00:45:37,740 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.444444444444445) internal successors, (40), 9 states have internal predecessors, (40), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-24 00:45:37,740 INFO L276 IsEmpty]: Start isEmpty. Operand 447 states and 656 transitions. [2024-11-24 00:45:37,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-11-24 00:45:37,742 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:45:37,742 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:45:37,743 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-24 00:45:37,744 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:45:37,745 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:45:37,746 INFO L85 PathProgramCache]: Analyzing trace with hash -1170093848, now seen corresponding path program 1 times [2024-11-24 00:45:37,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:45:37,747 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2064034231] [2024-11-24 00:45:37,747 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:45:37,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:45:37,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:45:37,870 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-24 00:45:37,874 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:45:37,874 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2064034231] [2024-11-24 00:45:37,874 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2064034231] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:45:37,875 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:45:37,875 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:45:37,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1014182778] [2024-11-24 00:45:37,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:45:37,875 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:45:37,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:45:37,877 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:45:37,877 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:45:37,877 INFO L87 Difference]: Start difference. First operand 447 states and 656 transitions. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-24 00:45:37,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:45:37,942 INFO L93 Difference]: Finished difference Result 798 states and 1170 transitions. [2024-11-24 00:45:37,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:45:37,943 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 117 [2024-11-24 00:45:37,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:45:37,947 INFO L225 Difference]: With dead ends: 798 [2024-11-24 00:45:37,947 INFO L226 Difference]: Without dead ends: 511 [2024-11-24 00:45:37,950 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:45:37,952 INFO L435 NwaCegarLoop]: 144 mSDtfsCounter, 41 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 241 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:45:37,952 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 241 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:45:37,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 511 states. [2024-11-24 00:45:37,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 511 to 403. [2024-11-24 00:45:37,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 403 states, 351 states have (on average 1.3903133903133904) internal successors, (488), 351 states have internal predecessors, (488), 48 states have call successors, (48), 3 states have call predecessors, (48), 3 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-24 00:45:37,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 403 states to 403 states and 584 transitions. [2024-11-24 00:45:37,995 INFO L78 Accepts]: Start accepts. Automaton has 403 states and 584 transitions. Word has length 117 [2024-11-24 00:45:37,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:45:37,996 INFO L471 AbstractCegarLoop]: Abstraction has 403 states and 584 transitions. [2024-11-24 00:45:37,996 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-24 00:45:37,996 INFO L276 IsEmpty]: Start isEmpty. Operand 403 states and 584 transitions. [2024-11-24 00:45:37,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-11-24 00:45:37,998 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:45:37,998 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:45:37,998 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-24 00:45:37,998 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:45:37,999 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:45:37,999 INFO L85 PathProgramCache]: Analyzing trace with hash -719871350, now seen corresponding path program 1 times [2024-11-24 00:45:37,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:45:37,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [661575075] [2024-11-24 00:45:37,999 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:45:37,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:45:38,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:45:38,173 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-24 00:45:38,173 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:45:38,173 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [661575075] [2024-11-24 00:45:38,174 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [661575075] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:45:38,174 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:45:38,174 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:45:38,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407112476] [2024-11-24 00:45:38,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:45:38,174 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:45:38,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:45:38,175 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:45:38,175 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:45:38,175 INFO L87 Difference]: Start difference. First operand 403 states and 584 transitions. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-24 00:45:38,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:45:38,235 INFO L93 Difference]: Finished difference Result 769 states and 1122 transitions. [2024-11-24 00:45:38,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:45:38,237 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 117 [2024-11-24 00:45:38,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:45:38,240 INFO L225 Difference]: With dead ends: 769 [2024-11-24 00:45:38,240 INFO L226 Difference]: Without dead ends: 494 [2024-11-24 00:45:38,241 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:45:38,242 INFO L435 NwaCegarLoop]: 106 mSDtfsCounter, 72 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 204 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:45:38,242 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 204 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:45:38,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 494 states. [2024-11-24 00:45:38,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 494 to 492. [2024-11-24 00:45:38,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 492 states, 423 states have (on average 1.375886524822695) internal successors, (582), 423 states have internal predecessors, (582), 64 states have call successors, (64), 4 states have call predecessors, (64), 4 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64) [2024-11-24 00:45:38,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 492 states to 492 states and 710 transitions. [2024-11-24 00:45:38,274 INFO L78 Accepts]: Start accepts. Automaton has 492 states and 710 transitions. Word has length 117 [2024-11-24 00:45:38,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:45:38,276 INFO L471 AbstractCegarLoop]: Abstraction has 492 states and 710 transitions. [2024-11-24 00:45:38,276 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-24 00:45:38,276 INFO L276 IsEmpty]: Start isEmpty. Operand 492 states and 710 transitions. [2024-11-24 00:45:38,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-24 00:45:38,279 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:45:38,279 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:45:38,279 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-24 00:45:38,279 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:45:38,280 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:45:38,280 INFO L85 PathProgramCache]: Analyzing trace with hash 1702888205, now seen corresponding path program 1 times [2024-11-24 00:45:38,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:45:38,283 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [924549413] [2024-11-24 00:45:38,283 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:45:38,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:45:38,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:45:38,641 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-24 00:45:38,641 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:45:38,641 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [924549413] [2024-11-24 00:45:38,641 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [924549413] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:45:38,642 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:45:38,642 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-24 00:45:38,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624180390] [2024-11-24 00:45:38,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:45:38,642 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-24 00:45:38,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:45:38,643 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-24 00:45:38,643 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-24 00:45:38,643 INFO L87 Difference]: Start difference. First operand 492 states and 710 transitions. Second operand has 8 states, 8 states have (on average 5.125) internal successors, (41), 8 states have internal predecessors, (41), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-24 00:45:39,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:45:39,143 INFO L93 Difference]: Finished difference Result 1040 states and 1489 transitions. [2024-11-24 00:45:39,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-24 00:45:39,144 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.125) internal successors, (41), 8 states have internal predecessors, (41), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 118 [2024-11-24 00:45:39,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:45:39,149 INFO L225 Difference]: With dead ends: 1040 [2024-11-24 00:45:39,149 INFO L226 Difference]: Without dead ends: 676 [2024-11-24 00:45:39,151 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182 [2024-11-24 00:45:39,152 INFO L435 NwaCegarLoop]: 104 mSDtfsCounter, 175 mSDsluCounter, 514 mSDsCounter, 0 mSdLazyCounter, 207 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 618 SdHoareTripleChecker+Invalid, 257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 207 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-24 00:45:39,153 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [175 Valid, 618 Invalid, 257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 207 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-24 00:45:39,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 676 states. [2024-11-24 00:45:39,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 676 to 528. [2024-11-24 00:45:39,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 528 states, 459 states have (on average 1.3725490196078431) internal successors, (630), 459 states have internal predecessors, (630), 64 states have call successors, (64), 4 states have call predecessors, (64), 4 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64) [2024-11-24 00:45:39,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 528 states to 528 states and 758 transitions. [2024-11-24 00:45:39,204 INFO L78 Accepts]: Start accepts. Automaton has 528 states and 758 transitions. Word has length 118 [2024-11-24 00:45:39,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:45:39,205 INFO L471 AbstractCegarLoop]: Abstraction has 528 states and 758 transitions. [2024-11-24 00:45:39,205 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.125) internal successors, (41), 8 states have internal predecessors, (41), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-24 00:45:39,205 INFO L276 IsEmpty]: Start isEmpty. Operand 528 states and 758 transitions. [2024-11-24 00:45:39,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-24 00:45:39,210 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:45:39,210 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:45:39,210 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-24 00:45:39,210 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:45:39,211 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:45:39,211 INFO L85 PathProgramCache]: Analyzing trace with hash -1006533914, now seen corresponding path program 1 times [2024-11-24 00:45:39,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:45:39,211 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [810205742] [2024-11-24 00:45:39,211 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:45:39,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:45:39,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:45:39,509 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-24 00:45:39,509 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:45:39,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [810205742] [2024-11-24 00:45:39,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [810205742] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:45:39,510 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:45:39,510 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-24 00:45:39,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445892623] [2024-11-24 00:45:39,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:45:39,510 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-24 00:45:39,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:45:39,511 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-24 00:45:39,511 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-24 00:45:39,511 INFO L87 Difference]: Start difference. First operand 528 states and 758 transitions. Second operand has 8 states, 8 states have (on average 5.125) internal successors, (41), 8 states have internal predecessors, (41), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-24 00:45:39,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:45:39,998 INFO L93 Difference]: Finished difference Result 1098 states and 1573 transitions. [2024-11-24 00:45:39,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-24 00:45:39,999 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.125) internal successors, (41), 8 states have internal predecessors, (41), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 118 [2024-11-24 00:45:39,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:45:40,003 INFO L225 Difference]: With dead ends: 1098 [2024-11-24 00:45:40,004 INFO L226 Difference]: Without dead ends: 734 [2024-11-24 00:45:40,005 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182 [2024-11-24 00:45:40,006 INFO L435 NwaCegarLoop]: 153 mSDtfsCounter, 177 mSDsluCounter, 771 mSDsCounter, 0 mSdLazyCounter, 174 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 177 SdHoareTripleChecker+Valid, 924 SdHoareTripleChecker+Invalid, 223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-24 00:45:40,006 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [177 Valid, 924 Invalid, 223 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 174 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-24 00:45:40,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 734 states. [2024-11-24 00:45:40,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 734 to 650. [2024-11-24 00:45:40,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 650 states, 563 states have (on average 1.3605683836589697) internal successors, (766), 565 states have internal predecessors, (766), 80 states have call successors, (80), 6 states have call predecessors, (80), 6 states have return successors, (80), 78 states have call predecessors, (80), 80 states have call successors, (80) [2024-11-24 00:45:40,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 650 states to 650 states and 926 transitions. [2024-11-24 00:45:40,064 INFO L78 Accepts]: Start accepts. Automaton has 650 states and 926 transitions. Word has length 118 [2024-11-24 00:45:40,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:45:40,065 INFO L471 AbstractCegarLoop]: Abstraction has 650 states and 926 transitions. [2024-11-24 00:45:40,065 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.125) internal successors, (41), 8 states have internal predecessors, (41), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-24 00:45:40,065 INFO L276 IsEmpty]: Start isEmpty. Operand 650 states and 926 transitions. [2024-11-24 00:45:40,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-24 00:45:40,068 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:45:40,068 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:45:40,069 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-24 00:45:40,069 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:45:40,069 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:45:40,070 INFO L85 PathProgramCache]: Analyzing trace with hash 1691723589, now seen corresponding path program 1 times [2024-11-24 00:45:40,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:45:40,070 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1245605269] [2024-11-24 00:45:40,070 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:45:40,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:45:40,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:45:40,666 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-24 00:45:40,666 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:45:40,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1245605269] [2024-11-24 00:45:40,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1245605269] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:45:40,666 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:45:40,667 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-24 00:45:40,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848306649] [2024-11-24 00:45:40,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:45:40,667 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-24 00:45:40,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:45:40,668 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-24 00:45:40,668 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-24 00:45:40,668 INFO L87 Difference]: Start difference. First operand 650 states and 926 transitions. Second operand has 7 states, 7 states have (on average 6.0) internal successors, (42), 7 states have internal predecessors, (42), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-24 00:45:41,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:45:41,008 INFO L93 Difference]: Finished difference Result 869 states and 1228 transitions. [2024-11-24 00:45:41,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-24 00:45:41,009 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.0) internal successors, (42), 7 states have internal predecessors, (42), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 119 [2024-11-24 00:45:41,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:45:41,015 INFO L225 Difference]: With dead ends: 869 [2024-11-24 00:45:41,015 INFO L226 Difference]: Without dead ends: 867 [2024-11-24 00:45:41,016 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-11-24 00:45:41,017 INFO L435 NwaCegarLoop]: 134 mSDtfsCounter, 66 mSDsluCounter, 613 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 747 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-24 00:45:41,017 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 747 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-24 00:45:41,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 867 states. [2024-11-24 00:45:41,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 867 to 863. [2024-11-24 00:45:41,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 863 states, 741 states have (on average 1.3454790823211875) internal successors, (997), 746 states have internal predecessors, (997), 112 states have call successors, (112), 9 states have call predecessors, (112), 9 states have return successors, (112), 107 states have call predecessors, (112), 112 states have call successors, (112) [2024-11-24 00:45:41,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 863 states to 863 states and 1221 transitions. [2024-11-24 00:45:41,096 INFO L78 Accepts]: Start accepts. Automaton has 863 states and 1221 transitions. Word has length 119 [2024-11-24 00:45:41,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:45:41,096 INFO L471 AbstractCegarLoop]: Abstraction has 863 states and 1221 transitions. [2024-11-24 00:45:41,097 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.0) internal successors, (42), 7 states have internal predecessors, (42), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-24 00:45:41,097 INFO L276 IsEmpty]: Start isEmpty. Operand 863 states and 1221 transitions. [2024-11-24 00:45:41,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-24 00:45:41,099 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:45:41,100 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:45:41,100 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-24 00:45:41,100 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:45:41,100 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:45:41,100 INFO L85 PathProgramCache]: Analyzing trace with hash 1418059458, now seen corresponding path program 1 times [2024-11-24 00:45:41,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:45:41,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1911454477] [2024-11-24 00:45:41,101 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:45:41,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:45:41,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:45:41,249 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-24 00:45:41,250 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:45:41,250 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1911454477] [2024-11-24 00:45:41,250 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1911454477] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:45:41,250 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:45:41,250 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:45:41,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1870568297] [2024-11-24 00:45:41,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:45:41,251 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:45:41,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:45:41,251 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:45:41,251 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:45:41,251 INFO L87 Difference]: Start difference. First operand 863 states and 1221 transitions. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-24 00:45:41,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:45:41,413 INFO L93 Difference]: Finished difference Result 1906 states and 2681 transitions. [2024-11-24 00:45:41,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:45:41,413 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 119 [2024-11-24 00:45:41,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:45:41,423 INFO L225 Difference]: With dead ends: 1906 [2024-11-24 00:45:41,423 INFO L226 Difference]: Without dead ends: 1257 [2024-11-24 00:45:41,425 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:45:41,426 INFO L435 NwaCegarLoop]: 110 mSDtfsCounter, 52 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 205 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:45:41,426 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 205 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 00:45:41,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1257 states. [2024-11-24 00:45:41,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1257 to 1250. [2024-11-24 00:45:41,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1250 states, 1099 states have (on average 1.327570518653321) internal successors, (1459), 1109 states have internal predecessors, (1459), 132 states have call successors, (132), 18 states have call predecessors, (132), 18 states have return successors, (132), 122 states have call predecessors, (132), 132 states have call successors, (132) [2024-11-24 00:45:41,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1250 states to 1250 states and 1723 transitions. [2024-11-24 00:45:41,550 INFO L78 Accepts]: Start accepts. Automaton has 1250 states and 1723 transitions. Word has length 119 [2024-11-24 00:45:41,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:45:41,551 INFO L471 AbstractCegarLoop]: Abstraction has 1250 states and 1723 transitions. [2024-11-24 00:45:41,551 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-24 00:45:41,551 INFO L276 IsEmpty]: Start isEmpty. Operand 1250 states and 1723 transitions. [2024-11-24 00:45:41,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-24 00:45:41,553 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:45:41,554 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:45:41,554 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-24 00:45:41,554 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:45:41,555 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:45:41,555 INFO L85 PathProgramCache]: Analyzing trace with hash -554524559, now seen corresponding path program 1 times [2024-11-24 00:45:41,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:45:41,555 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2113948673] [2024-11-24 00:45:41,555 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:45:41,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:45:41,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:45:42,802 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-24 00:45:42,802 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:45:42,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2113948673] [2024-11-24 00:45:42,803 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2113948673] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:45:42,803 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:45:42,803 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-24 00:45:42,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071094121] [2024-11-24 00:45:42,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:45:42,803 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-24 00:45:42,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:45:42,804 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-24 00:45:42,804 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-24 00:45:42,804 INFO L87 Difference]: Start difference. First operand 1250 states and 1723 transitions. Second operand has 7 states, 7 states have (on average 6.0) internal successors, (42), 7 states have internal predecessors, (42), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-24 00:45:44,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:45:44,267 INFO L93 Difference]: Finished difference Result 2950 states and 4059 transitions. [2024-11-24 00:45:44,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-24 00:45:44,268 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.0) internal successors, (42), 7 states have internal predecessors, (42), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 119 [2024-11-24 00:45:44,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:45:44,282 INFO L225 Difference]: With dead ends: 2950 [2024-11-24 00:45:44,283 INFO L226 Difference]: Without dead ends: 2022 [2024-11-24 00:45:44,287 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-11-24 00:45:44,288 INFO L435 NwaCegarLoop]: 166 mSDtfsCounter, 65 mSDsluCounter, 582 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 748 SdHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:45:44,289 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 748 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-24 00:45:44,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2022 states. [2024-11-24 00:45:44,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2022 to 1732. [2024-11-24 00:45:44,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1732 states, 1553 states have (on average 1.3193818415969092) internal successors, (2049), 1566 states have internal predecessors, (2049), 156 states have call successors, (156), 22 states have call predecessors, (156), 22 states have return successors, (156), 143 states have call predecessors, (156), 156 states have call successors, (156) [2024-11-24 00:45:44,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1732 states to 1732 states and 2361 transitions. [2024-11-24 00:45:44,492 INFO L78 Accepts]: Start accepts. Automaton has 1732 states and 2361 transitions. Word has length 119 [2024-11-24 00:45:44,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:45:44,493 INFO L471 AbstractCegarLoop]: Abstraction has 1732 states and 2361 transitions. [2024-11-24 00:45:44,493 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.0) internal successors, (42), 7 states have internal predecessors, (42), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-24 00:45:44,493 INFO L276 IsEmpty]: Start isEmpty. Operand 1732 states and 2361 transitions. [2024-11-24 00:45:44,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-24 00:45:44,497 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:45:44,497 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:45:44,497 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-24 00:45:44,498 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:45:44,498 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:45:44,499 INFO L85 PathProgramCache]: Analyzing trace with hash 725339119, now seen corresponding path program 1 times [2024-11-24 00:45:44,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:45:44,499 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1475193994] [2024-11-24 00:45:44,499 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:45:44,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:45:44,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:45:45,757 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-24 00:45:45,757 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:45:45,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1475193994] [2024-11-24 00:45:45,758 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1475193994] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:45:45,758 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:45:45,758 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-24 00:45:45,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [610135808] [2024-11-24 00:45:45,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:45:45,759 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-24 00:45:45,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:45:45,759 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-24 00:45:45,760 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-24 00:45:45,760 INFO L87 Difference]: Start difference. First operand 1732 states and 2361 transitions. Second operand has 7 states, 7 states have (on average 6.0) internal successors, (42), 7 states have internal predecessors, (42), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-24 00:45:47,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:45:47,448 INFO L93 Difference]: Finished difference Result 3537 states and 4803 transitions. [2024-11-24 00:45:47,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-24 00:45:47,449 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.0) internal successors, (42), 7 states have internal predecessors, (42), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 119 [2024-11-24 00:45:47,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:45:47,461 INFO L225 Difference]: With dead ends: 3537 [2024-11-24 00:45:47,461 INFO L226 Difference]: Without dead ends: 2273 [2024-11-24 00:45:47,464 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-11-24 00:45:47,465 INFO L435 NwaCegarLoop]: 145 mSDtfsCounter, 40 mSDsluCounter, 587 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 732 SdHoareTripleChecker+Invalid, 175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-24 00:45:47,465 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 732 Invalid, 175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-24 00:45:47,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2273 states. [2024-11-24 00:45:47,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2273 to 2260. [2024-11-24 00:45:47,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2260 states, 2046 states have (on average 1.2947214076246334) internal successors, (2649), 2070 states have internal predecessors, (2649), 178 states have call successors, (178), 35 states have call predecessors, (178), 35 states have return successors, (178), 154 states have call predecessors, (178), 178 states have call successors, (178) [2024-11-24 00:45:47,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2260 states to 2260 states and 3005 transitions. [2024-11-24 00:45:47,748 INFO L78 Accepts]: Start accepts. Automaton has 2260 states and 3005 transitions. Word has length 119 [2024-11-24 00:45:47,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:45:47,748 INFO L471 AbstractCegarLoop]: Abstraction has 2260 states and 3005 transitions. [2024-11-24 00:45:47,749 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.0) internal successors, (42), 7 states have internal predecessors, (42), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-24 00:45:47,749 INFO L276 IsEmpty]: Start isEmpty. Operand 2260 states and 3005 transitions. [2024-11-24 00:45:47,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-24 00:45:47,752 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:45:47,752 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:45:47,752 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-24 00:45:47,753 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:45:47,753 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:45:47,753 INFO L85 PathProgramCache]: Analyzing trace with hash 1258708749, now seen corresponding path program 1 times [2024-11-24 00:45:47,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:45:47,753 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1876196305] [2024-11-24 00:45:47,754 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:45:47,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:45:47,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:45:47,975 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-24 00:45:47,976 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:45:47,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1876196305] [2024-11-24 00:45:47,976 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1876196305] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:45:47,976 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:45:47,976 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 00:45:47,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1700543146] [2024-11-24 00:45:47,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:45:47,976 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 00:45:47,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:45:47,977 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 00:45:47,977 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:45:47,977 INFO L87 Difference]: Start difference. First operand 2260 states and 3005 transitions. Second operand has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-24 00:45:48,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:45:48,556 INFO L93 Difference]: Finished difference Result 4478 states and 5995 transitions. [2024-11-24 00:45:48,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-24 00:45:48,557 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 119 [2024-11-24 00:45:48,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:45:48,569 INFO L225 Difference]: With dead ends: 4478 [2024-11-24 00:45:48,570 INFO L226 Difference]: Without dead ends: 2844 [2024-11-24 00:45:48,573 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-24 00:45:48,573 INFO L435 NwaCegarLoop]: 128 mSDtfsCounter, 62 mSDsluCounter, 401 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 529 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-24 00:45:48,574 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 529 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-24 00:45:48,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2844 states. [2024-11-24 00:45:48,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2844 to 2673. [2024-11-24 00:45:48,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2673 states, 2416 states have (on average 1.2901490066225165) internal successors, (3117), 2448 states have internal predecessors, (3117), 210 states have call successors, (210), 46 states have call predecessors, (210), 46 states have return successors, (210), 178 states have call predecessors, (210), 210 states have call successors, (210) [2024-11-24 00:45:48,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2673 states to 2673 states and 3537 transitions. [2024-11-24 00:45:48,887 INFO L78 Accepts]: Start accepts. Automaton has 2673 states and 3537 transitions. Word has length 119 [2024-11-24 00:45:48,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:45:48,887 INFO L471 AbstractCegarLoop]: Abstraction has 2673 states and 3537 transitions. [2024-11-24 00:45:48,888 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-24 00:45:48,888 INFO L276 IsEmpty]: Start isEmpty. Operand 2673 states and 3537 transitions. [2024-11-24 00:45:48,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-24 00:45:48,891 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:45:48,891 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:45:48,891 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-24 00:45:48,891 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:45:48,892 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:45:48,892 INFO L85 PathProgramCache]: Analyzing trace with hash -474911783, now seen corresponding path program 1 times [2024-11-24 00:45:48,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:45:48,892 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [961838136] [2024-11-24 00:45:48,892 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:45:48,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:45:48,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:45:48,973 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-24 00:45:48,973 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:45:48,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [961838136] [2024-11-24 00:45:48,974 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [961838136] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:45:48,974 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:45:48,974 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:45:48,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [601213830] [2024-11-24 00:45:48,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:45:48,974 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:45:48,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:45:48,975 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:45:48,975 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:45:48,976 INFO L87 Difference]: Start difference. First operand 2673 states and 3537 transitions. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-24 00:45:49,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:45:49,249 INFO L93 Difference]: Finished difference Result 4626 states and 6139 transitions. [2024-11-24 00:45:49,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:45:49,249 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 119 [2024-11-24 00:45:49,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:45:49,285 INFO L225 Difference]: With dead ends: 4626 [2024-11-24 00:45:49,286 INFO L226 Difference]: Without dead ends: 2405 [2024-11-24 00:45:49,289 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:45:49,290 INFO L435 NwaCegarLoop]: 164 mSDtfsCounter, 51 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 261 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:45:49,290 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 261 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:45:49,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2405 states. [2024-11-24 00:45:49,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2405 to 2191. [2024-11-24 00:45:49,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2191 states, 1973 states have (on average 1.2539280283831729) internal successors, (2474), 1994 states have internal predecessors, (2474), 176 states have call successors, (176), 41 states have call predecessors, (176), 41 states have return successors, (176), 155 states have call predecessors, (176), 176 states have call successors, (176) [2024-11-24 00:45:49,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2191 states to 2191 states and 2826 transitions. [2024-11-24 00:45:49,554 INFO L78 Accepts]: Start accepts. Automaton has 2191 states and 2826 transitions. Word has length 119 [2024-11-24 00:45:49,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:45:49,555 INFO L471 AbstractCegarLoop]: Abstraction has 2191 states and 2826 transitions. [2024-11-24 00:45:49,555 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-24 00:45:49,555 INFO L276 IsEmpty]: Start isEmpty. Operand 2191 states and 2826 transitions. [2024-11-24 00:45:49,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-24 00:45:49,558 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:45:49,558 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:45:49,558 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-24 00:45:49,559 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:45:49,559 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:45:49,559 INFO L85 PathProgramCache]: Analyzing trace with hash 1087159073, now seen corresponding path program 1 times [2024-11-24 00:45:49,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:45:49,560 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1328119073] [2024-11-24 00:45:49,560 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:45:49,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:45:49,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:45:49,629 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-24 00:45:49,629 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:45:49,630 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1328119073] [2024-11-24 00:45:49,630 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1328119073] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:45:49,630 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:45:49,630 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:45:49,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1467428209] [2024-11-24 00:45:49,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:45:49,631 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:45:49,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:45:49,631 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:45:49,631 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:45:49,632 INFO L87 Difference]: Start difference. First operand 2191 states and 2826 transitions. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-24 00:45:49,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:45:49,922 INFO L93 Difference]: Finished difference Result 3689 states and 4758 transitions. [2024-11-24 00:45:49,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:45:49,923 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 120 [2024-11-24 00:45:49,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:45:49,933 INFO L225 Difference]: With dead ends: 3689 [2024-11-24 00:45:49,933 INFO L226 Difference]: Without dead ends: 1764 [2024-11-24 00:45:49,937 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:45:49,938 INFO L435 NwaCegarLoop]: 171 mSDtfsCounter, 70 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 265 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:45:49,939 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 265 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:45:49,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1764 states. [2024-11-24 00:45:50,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1764 to 1758. [2024-11-24 00:45:50,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1758 states, 1500 states have (on average 1.22) internal successors, (1830), 1525 states have internal predecessors, (1830), 200 states have call successors, (200), 57 states have call predecessors, (200), 57 states have return successors, (200), 175 states have call predecessors, (200), 200 states have call successors, (200) [2024-11-24 00:45:50,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1758 states to 1758 states and 2230 transitions. [2024-11-24 00:45:50,258 INFO L78 Accepts]: Start accepts. Automaton has 1758 states and 2230 transitions. Word has length 120 [2024-11-24 00:45:50,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:45:50,259 INFO L471 AbstractCegarLoop]: Abstraction has 1758 states and 2230 transitions. [2024-11-24 00:45:50,259 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-24 00:45:50,259 INFO L276 IsEmpty]: Start isEmpty. Operand 1758 states and 2230 transitions. [2024-11-24 00:45:50,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-24 00:45:50,261 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:45:50,262 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:45:50,262 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-24 00:45:50,262 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:45:50,263 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:45:50,263 INFO L85 PathProgramCache]: Analyzing trace with hash 1506327267, now seen corresponding path program 1 times [2024-11-24 00:45:50,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:45:50,263 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1898465192] [2024-11-24 00:45:50,263 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:45:50,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:45:50,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:45:50,843 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-24 00:45:50,844 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:45:50,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1898465192] [2024-11-24 00:45:50,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1898465192] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:45:50,844 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:45:50,844 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-24 00:45:50,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642551745] [2024-11-24 00:45:50,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:45:50,846 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-24 00:45:50,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:45:50,847 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-24 00:45:50,847 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-24 00:45:50,847 INFO L87 Difference]: Start difference. First operand 1758 states and 2230 transitions. Second operand has 9 states, 9 states have (on average 4.777777777777778) internal successors, (43), 9 states have internal predecessors, (43), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-24 00:45:51,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:45:51,871 INFO L93 Difference]: Finished difference Result 3548 states and 4508 transitions. [2024-11-24 00:45:51,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-24 00:45:51,871 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.777777777777778) internal successors, (43), 9 states have internal predecessors, (43), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 120 [2024-11-24 00:45:51,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:45:51,884 INFO L225 Difference]: With dead ends: 3548 [2024-11-24 00:45:51,884 INFO L226 Difference]: Without dead ends: 2038 [2024-11-24 00:45:51,888 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=54, Invalid=156, Unknown=0, NotChecked=0, Total=210 [2024-11-24 00:45:51,892 INFO L435 NwaCegarLoop]: 124 mSDtfsCounter, 141 mSDsluCounter, 636 mSDsCounter, 0 mSdLazyCounter, 257 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 760 SdHoareTripleChecker+Invalid, 306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-24 00:45:51,892 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 760 Invalid, 306 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 257 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-24 00:45:51,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2038 states. [2024-11-24 00:45:52,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2038 to 1758. [2024-11-24 00:45:52,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1758 states, 1500 states have (on average 1.2173333333333334) internal successors, (1826), 1525 states have internal predecessors, (1826), 200 states have call successors, (200), 57 states have call predecessors, (200), 57 states have return successors, (200), 175 states have call predecessors, (200), 200 states have call successors, (200) [2024-11-24 00:45:52,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1758 states to 1758 states and 2226 transitions. [2024-11-24 00:45:52,206 INFO L78 Accepts]: Start accepts. Automaton has 1758 states and 2226 transitions. Word has length 120 [2024-11-24 00:45:52,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:45:52,206 INFO L471 AbstractCegarLoop]: Abstraction has 1758 states and 2226 transitions. [2024-11-24 00:45:52,207 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.777777777777778) internal successors, (43), 9 states have internal predecessors, (43), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-24 00:45:52,207 INFO L276 IsEmpty]: Start isEmpty. Operand 1758 states and 2226 transitions. [2024-11-24 00:45:52,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-24 00:45:52,210 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:45:52,210 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:45:52,210 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-24 00:45:52,210 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:45:52,211 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:45:52,212 INFO L85 PathProgramCache]: Analyzing trace with hash 948521258, now seen corresponding path program 1 times [2024-11-24 00:45:52,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:45:52,212 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1216059903] [2024-11-24 00:45:52,212 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:45:52,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:45:52,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:45:53,351 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-24 00:45:53,351 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:45:53,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1216059903] [2024-11-24 00:45:53,351 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1216059903] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:45:53,351 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:45:53,352 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-24 00:45:53,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594941077] [2024-11-24 00:45:53,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:45:53,352 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-24 00:45:53,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:45:53,353 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-24 00:45:53,353 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2024-11-24 00:45:53,354 INFO L87 Difference]: Start difference. First operand 1758 states and 2226 transitions. Second operand has 13 states, 13 states have (on average 3.3076923076923075) internal successors, (43), 13 states have internal predecessors, (43), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-24 00:45:54,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:45:54,668 INFO L93 Difference]: Finished difference Result 3529 states and 4477 transitions. [2024-11-24 00:45:54,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-24 00:45:54,669 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.3076923076923075) internal successors, (43), 13 states have internal predecessors, (43), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 120 [2024-11-24 00:45:54,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:45:54,680 INFO L225 Difference]: With dead ends: 3529 [2024-11-24 00:45:54,680 INFO L226 Difference]: Without dead ends: 2079 [2024-11-24 00:45:54,684 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=97, Invalid=323, Unknown=0, NotChecked=0, Total=420 [2024-11-24 00:45:54,685 INFO L435 NwaCegarLoop]: 92 mSDtfsCounter, 198 mSDsluCounter, 668 mSDsCounter, 0 mSdLazyCounter, 374 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 198 SdHoareTripleChecker+Valid, 760 SdHoareTripleChecker+Invalid, 451 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 374 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-24 00:45:54,685 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [198 Valid, 760 Invalid, 451 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 374 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-24 00:45:54,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2079 states. [2024-11-24 00:45:55,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2079 to 1764. [2024-11-24 00:45:55,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1764 states, 1506 states have (on average 1.2164674634794157) internal successors, (1832), 1531 states have internal predecessors, (1832), 200 states have call successors, (200), 57 states have call predecessors, (200), 57 states have return successors, (200), 175 states have call predecessors, (200), 200 states have call successors, (200) [2024-11-24 00:45:55,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1764 states to 1764 states and 2232 transitions. [2024-11-24 00:45:55,018 INFO L78 Accepts]: Start accepts. Automaton has 1764 states and 2232 transitions. Word has length 120 [2024-11-24 00:45:55,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:45:55,022 INFO L471 AbstractCegarLoop]: Abstraction has 1764 states and 2232 transitions. [2024-11-24 00:45:55,022 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.3076923076923075) internal successors, (43), 13 states have internal predecessors, (43), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-24 00:45:55,022 INFO L276 IsEmpty]: Start isEmpty. Operand 1764 states and 2232 transitions. [2024-11-24 00:45:55,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-24 00:45:55,024 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:45:55,024 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:45:55,024 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-24 00:45:55,025 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:45:55,025 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:45:55,025 INFO L85 PathProgramCache]: Analyzing trace with hash -1669230730, now seen corresponding path program 1 times [2024-11-24 00:45:55,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:45:55,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1319622368] [2024-11-24 00:45:55,025 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:45:55,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:45:55,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:45:55,305 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 75 proven. 9 refuted. 0 times theorem prover too weak. 396 trivial. 0 not checked. [2024-11-24 00:45:55,306 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:45:55,306 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1319622368] [2024-11-24 00:45:55,306 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1319622368] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:45:55,306 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [702538530] [2024-11-24 00:45:55,306 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:45:55,307 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:45:55,307 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff9b14d4-6dfc-48d9-91e6-a966d8bf8b83/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:45:55,309 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff9b14d4-6dfc-48d9-91e6-a966d8bf8b83/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:45:55,312 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff9b14d4-6dfc-48d9-91e6-a966d8bf8b83/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-24 00:45:55,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:45:55,419 INFO L256 TraceCheckSpWp]: Trace formula consists of 272 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-24 00:45:55,425 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:45:55,612 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 194 proven. 9 refuted. 0 times theorem prover too weak. 277 trivial. 0 not checked. [2024-11-24 00:45:55,612 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:45:55,912 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 75 proven. 12 refuted. 0 times theorem prover too weak. 393 trivial. 0 not checked. [2024-11-24 00:45:55,912 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [702538530] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 00:45:55,912 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 00:45:55,912 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 8, 8] total 12 [2024-11-24 00:45:55,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [983408540] [2024-11-24 00:45:55,913 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 00:45:55,913 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-24 00:45:55,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:45:55,914 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-24 00:45:55,914 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-11-24 00:45:55,914 INFO L87 Difference]: Start difference. First operand 1764 states and 2232 transitions. Second operand has 12 states, 12 states have (on average 5.083333333333333) internal successors, (61), 12 states have internal predecessors, (61), 3 states have call successors, (19), 3 states have call predecessors, (19), 7 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2024-11-24 00:45:56,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:45:56,598 INFO L93 Difference]: Finished difference Result 3626 states and 4539 transitions. [2024-11-24 00:45:56,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-24 00:45:56,600 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.083333333333333) internal successors, (61), 12 states have internal predecessors, (61), 3 states have call successors, (19), 3 states have call predecessors, (19), 7 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) Word has length 120 [2024-11-24 00:45:56,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:45:56,608 INFO L225 Difference]: With dead ends: 3626 [2024-11-24 00:45:56,608 INFO L226 Difference]: Without dead ends: 1908 [2024-11-24 00:45:56,611 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 251 GetRequests, 234 SyntacticMatches, 2 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=101, Invalid=171, Unknown=0, NotChecked=0, Total=272 [2024-11-24 00:45:56,613 INFO L435 NwaCegarLoop]: 77 mSDtfsCounter, 225 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 188 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 238 SdHoareTripleChecker+Valid, 258 SdHoareTripleChecker+Invalid, 251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-24 00:45:56,613 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [238 Valid, 258 Invalid, 251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 188 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-24 00:45:56,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1908 states. [2024-11-24 00:45:56,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1908 to 1796. [2024-11-24 00:45:56,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1796 states, 1530 states have (on average 1.1973856209150326) internal successors, (1832), 1555 states have internal predecessors, (1832), 200 states have call successors, (200), 65 states have call predecessors, (200), 65 states have return successors, (200), 175 states have call predecessors, (200), 200 states have call successors, (200) [2024-11-24 00:45:56,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1796 states to 1796 states and 2232 transitions. [2024-11-24 00:45:56,909 INFO L78 Accepts]: Start accepts. Automaton has 1796 states and 2232 transitions. Word has length 120 [2024-11-24 00:45:56,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:45:56,909 INFO L471 AbstractCegarLoop]: Abstraction has 1796 states and 2232 transitions. [2024-11-24 00:45:56,911 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.083333333333333) internal successors, (61), 12 states have internal predecessors, (61), 3 states have call successors, (19), 3 states have call predecessors, (19), 7 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2024-11-24 00:45:56,911 INFO L276 IsEmpty]: Start isEmpty. Operand 1796 states and 2232 transitions. [2024-11-24 00:45:56,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-24 00:45:56,915 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:45:56,916 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:45:56,927 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff9b14d4-6dfc-48d9-91e6-a966d8bf8b83/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-24 00:45:57,120 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff9b14d4-6dfc-48d9-91e6-a966d8bf8b83/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2024-11-24 00:45:57,121 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:45:57,121 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:45:57,121 INFO L85 PathProgramCache]: Analyzing trace with hash 1328436147, now seen corresponding path program 1 times [2024-11-24 00:45:57,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:45:57,122 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [82305177] [2024-11-24 00:45:57,122 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:45:57,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:45:57,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-24 00:45:57,194 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2094290271] [2024-11-24 00:45:57,194 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:45:57,194 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:45:57,194 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff9b14d4-6dfc-48d9-91e6-a966d8bf8b83/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:45:57,197 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff9b14d4-6dfc-48d9-91e6-a966d8bf8b83/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:45:57,201 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff9b14d4-6dfc-48d9-91e6-a966d8bf8b83/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-24 00:45:57,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:45:57,493 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-24 00:45:57,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:45:57,634 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-24 00:45:57,635 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-24 00:45:57,636 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-24 00:45:57,644 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff9b14d4-6dfc-48d9-91e6-a966d8bf8b83/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-24 00:45:57,838 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff9b14d4-6dfc-48d9-91e6-a966d8bf8b83/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:45:57,843 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:45:57,956 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-24 00:45:57,961 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.11 12:45:57 BoogieIcfgContainer [2024-11-24 00:45:57,961 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-24 00:45:57,962 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-24 00:45:57,962 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-24 00:45:57,962 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-24 00:45:57,967 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:45:19" (3/4) ... [2024-11-24 00:45:57,970 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-24 00:45:57,971 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-24 00:45:57,972 INFO L158 Benchmark]: Toolchain (without parser) took 39883.85ms. Allocated memory was 142.6MB in the beginning and 629.1MB in the end (delta: 486.5MB). Free memory was 105.5MB in the beginning and 338.8MB in the end (delta: -233.3MB). Peak memory consumption was 247.5MB. Max. memory is 16.1GB. [2024-11-24 00:45:57,972 INFO L158 Benchmark]: CDTParser took 1.43ms. Allocated memory is still 167.8MB. Free memory is still 103.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 00:45:57,974 INFO L158 Benchmark]: CACSL2BoogieTranslator took 405.44ms. Allocated memory is still 142.6MB. Free memory was 105.2MB in the beginning and 92.1MB in the end (delta: 13.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-24 00:45:57,974 INFO L158 Benchmark]: Boogie Procedure Inliner took 61.33ms. Allocated memory is still 142.6MB. Free memory was 92.1MB in the beginning and 88.5MB in the end (delta: 3.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-24 00:45:57,974 INFO L158 Benchmark]: Boogie Preprocessor took 56.25ms. Allocated memory is still 142.6MB. Free memory was 88.5MB in the beginning and 84.1MB in the end (delta: 4.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 00:45:57,975 INFO L158 Benchmark]: RCFGBuilder took 651.99ms. Allocated memory is still 142.6MB. Free memory was 84.1MB in the beginning and 60.1MB in the end (delta: 24.0MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-24 00:45:57,979 INFO L158 Benchmark]: TraceAbstraction took 38691.72ms. Allocated memory was 142.6MB in the beginning and 629.1MB in the end (delta: 486.5MB). Free memory was 59.5MB in the beginning and 343.0MB in the end (delta: -283.5MB). Peak memory consumption was 205.5MB. Max. memory is 16.1GB. [2024-11-24 00:45:57,980 INFO L158 Benchmark]: Witness Printer took 9.05ms. Allocated memory is still 629.1MB. Free memory was 343.0MB in the beginning and 338.8MB in the end (delta: 4.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 00:45:57,981 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.43ms. Allocated memory is still 167.8MB. Free memory is still 103.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 405.44ms. Allocated memory is still 142.6MB. Free memory was 105.2MB in the beginning and 92.1MB in the end (delta: 13.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 61.33ms. Allocated memory is still 142.6MB. Free memory was 92.1MB in the beginning and 88.5MB in the end (delta: 3.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 56.25ms. Allocated memory is still 142.6MB. Free memory was 88.5MB in the beginning and 84.1MB in the end (delta: 4.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 651.99ms. Allocated memory is still 142.6MB. Free memory was 84.1MB in the beginning and 60.1MB in the end (delta: 24.0MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 38691.72ms. Allocated memory was 142.6MB in the beginning and 629.1MB in the end (delta: 486.5MB). Free memory was 59.5MB in the beginning and 343.0MB in the end (delta: -283.5MB). Peak memory consumption was 205.5MB. Max. memory is 16.1GB. * Witness Printer took 9.05ms. Allocated memory is still 629.1MB. Free memory was 343.0MB in the beginning and 338.8MB in the end (delta: 4.2MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of shiftLeft at line 90, overapproximation of shiftLeft at line 53. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned short int var_1_1 = 0; [L23] unsigned short int var_1_3 = 128; [L24] unsigned short int var_1_4 = 4; [L25] unsigned short int var_1_5 = 0; [L26] signed short int var_1_6 = 0; [L27] unsigned char var_1_7 = 1; [L28] signed short int var_1_8 = -2; [L29] signed short int var_1_9 = 500; [L30] unsigned long int var_1_10 = 10; [L31] unsigned char var_1_11 = 2; [L32] unsigned char var_1_12 = 64; [L33] unsigned long int var_1_13 = 1; [L34] unsigned long int last_1_var_1_10 = 10; [L35] unsigned long int last_1_var_1_13 = 1; VAL [isInitial=0, last_1_var_1_10=10, last_1_var_1_13=1, var_1_10=10, var_1_11=2, var_1_12=64, var_1_13=1, var_1_1=0, var_1_3=128, var_1_4=4, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=-2, var_1_9=500] [L94] isInitial = 1 [L95] FCALL initially() [L96] int k_loop; [L97] k_loop = 0 VAL [isInitial=1, k_loop=0, last_1_var_1_10=10, last_1_var_1_13=1, var_1_10=10, var_1_11=2, var_1_12=64, var_1_13=1, var_1_1=0, var_1_3=128, var_1_4=4, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=-2, var_1_9=500] [L97] COND TRUE k_loop < 1 VAL [isInitial=1, k_loop=0, last_1_var_1_10=10, last_1_var_1_13=1, var_1_10=10, var_1_11=2, var_1_12=64, var_1_13=1, var_1_1=0, var_1_3=128, var_1_4=4, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=-2, var_1_9=500] [L98] CALL updateLastVariables() [L86] last_1_var_1_10 = var_1_10 [L87] last_1_var_1_13 = var_1_13 VAL [isInitial=1, last_1_var_1_10=10, last_1_var_1_13=1, var_1_10=10, var_1_11=2, var_1_12=64, var_1_13=1, var_1_1=0, var_1_3=128, var_1_4=4, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=-2, var_1_9=500] [L98] RET updateLastVariables() [L99] CALL updateVariables() [L60] var_1_3 = __VERIFIER_nondet_ushort() [L61] CALL assume_abort_if_not(var_1_3 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=10, last_1_var_1_13=1, var_1_10=10, var_1_11=2, var_1_12=64, var_1_13=1, var_1_1=0, var_1_4=4, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=-2, var_1_9=500] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=10, last_1_var_1_13=1, var_1_10=10, var_1_11=2, var_1_12=64, var_1_13=1, var_1_1=0, var_1_4=4, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=-2, var_1_9=500] [L61] RET assume_abort_if_not(var_1_3 >= 0) VAL [isInitial=1, last_1_var_1_10=10, last_1_var_1_13=1, var_1_10=10, var_1_11=2, var_1_12=64, var_1_13=1, var_1_1=0, var_1_4=4, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=-2, var_1_9=500] [L62] CALL assume_abort_if_not(var_1_3 <= 32767) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=10, last_1_var_1_13=1, var_1_10=10, var_1_11=2, var_1_12=64, var_1_13=1, var_1_1=0, var_1_3=0, var_1_4=4, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=-2, var_1_9=500] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=10, last_1_var_1_13=1, var_1_10=10, var_1_11=2, var_1_12=64, var_1_13=1, var_1_1=0, var_1_3=0, var_1_4=4, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=-2, var_1_9=500] [L62] RET assume_abort_if_not(var_1_3 <= 32767) VAL [isInitial=1, last_1_var_1_10=10, last_1_var_1_13=1, var_1_10=10, var_1_11=2, var_1_12=64, var_1_13=1, var_1_1=0, var_1_3=0, var_1_4=4, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=-2, var_1_9=500] [L63] var_1_4 = __VERIFIER_nondet_ushort() [L64] CALL assume_abort_if_not(var_1_4 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=10, last_1_var_1_13=1, var_1_10=10, var_1_11=2, var_1_12=64, var_1_13=1, var_1_1=0, var_1_3=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=-2, var_1_9=500] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=10, last_1_var_1_13=1, var_1_10=10, var_1_11=2, var_1_12=64, var_1_13=1, var_1_1=0, var_1_3=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=-2, var_1_9=500] [L64] RET assume_abort_if_not(var_1_4 >= 0) VAL [isInitial=1, last_1_var_1_10=10, last_1_var_1_13=1, var_1_10=10, var_1_11=2, var_1_12=64, var_1_13=1, var_1_1=0, var_1_3=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=-2, var_1_9=500] [L65] CALL assume_abort_if_not(var_1_4 <= 32767) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=10, last_1_var_1_13=1, var_1_10=10, var_1_11=2, var_1_12=64, var_1_13=1, var_1_1=0, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=-2, var_1_9=500] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=10, last_1_var_1_13=1, var_1_10=10, var_1_11=2, var_1_12=64, var_1_13=1, var_1_1=0, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=-2, var_1_9=500] [L65] RET assume_abort_if_not(var_1_4 <= 32767) VAL [isInitial=1, last_1_var_1_10=10, last_1_var_1_13=1, var_1_10=10, var_1_11=2, var_1_12=64, var_1_13=1, var_1_1=0, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=-2, var_1_9=500] [L66] var_1_5 = __VERIFIER_nondet_ushort() [L67] CALL assume_abort_if_not(var_1_5 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=10, last_1_var_1_13=1, var_1_10=10, var_1_11=2, var_1_12=64, var_1_13=1, var_1_1=0, var_1_3=0, var_1_4=0, var_1_6=0, var_1_7=1, var_1_8=-2, var_1_9=500] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=10, last_1_var_1_13=1, var_1_10=10, var_1_11=2, var_1_12=64, var_1_13=1, var_1_1=0, var_1_3=0, var_1_4=0, var_1_6=0, var_1_7=1, var_1_8=-2, var_1_9=500] [L67] RET assume_abort_if_not(var_1_5 >= 0) VAL [isInitial=1, last_1_var_1_10=10, last_1_var_1_13=1, var_1_10=10, var_1_11=2, var_1_12=64, var_1_13=1, var_1_1=0, var_1_3=0, var_1_4=0, var_1_6=0, var_1_7=1, var_1_8=-2, var_1_9=500] [L68] CALL assume_abort_if_not(var_1_5 <= 65534) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=10, last_1_var_1_13=1, var_1_10=10, var_1_11=2, var_1_12=64, var_1_13=1, var_1_1=0, var_1_3=0, var_1_4=0, var_1_5=1, var_1_6=0, var_1_7=1, var_1_8=-2, var_1_9=500] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=10, last_1_var_1_13=1, var_1_10=10, var_1_11=2, var_1_12=64, var_1_13=1, var_1_1=0, var_1_3=0, var_1_4=0, var_1_5=1, var_1_6=0, var_1_7=1, var_1_8=-2, var_1_9=500] [L68] RET assume_abort_if_not(var_1_5 <= 65534) VAL [isInitial=1, last_1_var_1_10=10, last_1_var_1_13=1, var_1_10=10, var_1_11=2, var_1_12=64, var_1_13=1, var_1_1=0, var_1_3=0, var_1_4=0, var_1_5=1, var_1_6=0, var_1_7=1, var_1_8=-2, var_1_9=500] [L69] var_1_7 = __VERIFIER_nondet_uchar() [L70] CALL assume_abort_if_not(var_1_7 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=10, last_1_var_1_13=1, var_1_10=10, var_1_11=2, var_1_12=64, var_1_13=1, var_1_1=0, var_1_3=0, var_1_4=0, var_1_5=1, var_1_6=0, var_1_8=-2, var_1_9=500] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=10, last_1_var_1_13=1, var_1_10=10, var_1_11=2, var_1_12=64, var_1_13=1, var_1_1=0, var_1_3=0, var_1_4=0, var_1_5=1, var_1_6=0, var_1_8=-2, var_1_9=500] [L70] RET assume_abort_if_not(var_1_7 >= 0) VAL [isInitial=1, last_1_var_1_10=10, last_1_var_1_13=1, var_1_10=10, var_1_11=2, var_1_12=64, var_1_13=1, var_1_1=0, var_1_3=0, var_1_4=0, var_1_5=1, var_1_6=0, var_1_8=-2, var_1_9=500] [L71] CALL assume_abort_if_not(var_1_7 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=10, last_1_var_1_13=1, var_1_10=10, var_1_11=2, var_1_12=64, var_1_13=1, var_1_1=0, var_1_3=0, var_1_4=0, var_1_5=1, var_1_6=0, var_1_7=1, var_1_8=-2, var_1_9=500] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=10, last_1_var_1_13=1, var_1_10=10, var_1_11=2, var_1_12=64, var_1_13=1, var_1_1=0, var_1_3=0, var_1_4=0, var_1_5=1, var_1_6=0, var_1_7=1, var_1_8=-2, var_1_9=500] [L71] RET assume_abort_if_not(var_1_7 <= 1) VAL [isInitial=1, last_1_var_1_10=10, last_1_var_1_13=1, var_1_10=10, var_1_11=2, var_1_12=64, var_1_13=1, var_1_1=0, var_1_3=0, var_1_4=0, var_1_5=1, var_1_6=0, var_1_7=1, var_1_8=-2, var_1_9=500] [L72] var_1_8 = __VERIFIER_nondet_short() [L73] CALL assume_abort_if_not(var_1_8 >= -16383) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=10, last_1_var_1_13=1, var_1_10=10, var_1_11=2, var_1_12=64, var_1_13=1, var_1_1=0, var_1_3=0, var_1_4=0, var_1_5=1, var_1_6=0, var_1_7=1, var_1_8=-1, var_1_9=500] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=10, last_1_var_1_13=1, var_1_10=10, var_1_11=2, var_1_12=64, var_1_13=1, var_1_1=0, var_1_3=0, var_1_4=0, var_1_5=1, var_1_6=0, var_1_7=1, var_1_8=-1, var_1_9=500] [L73] RET assume_abort_if_not(var_1_8 >= -16383) VAL [isInitial=1, last_1_var_1_10=10, last_1_var_1_13=1, var_1_10=10, var_1_11=2, var_1_12=64, var_1_13=1, var_1_1=0, var_1_3=0, var_1_4=0, var_1_5=1, var_1_6=0, var_1_7=1, var_1_8=-1, var_1_9=500] [L74] CALL assume_abort_if_not(var_1_8 <= 16383) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=10, last_1_var_1_13=1, var_1_10=10, var_1_11=2, var_1_12=64, var_1_13=1, var_1_1=0, var_1_3=0, var_1_4=0, var_1_5=1, var_1_6=0, var_1_7=1, var_1_8=-1, var_1_9=500] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=10, last_1_var_1_13=1, var_1_10=10, var_1_11=2, var_1_12=64, var_1_13=1, var_1_1=0, var_1_3=0, var_1_4=0, var_1_5=1, var_1_6=0, var_1_7=1, var_1_8=-1, var_1_9=500] [L74] RET assume_abort_if_not(var_1_8 <= 16383) VAL [isInitial=1, last_1_var_1_10=10, last_1_var_1_13=1, var_1_10=10, var_1_11=2, var_1_12=64, var_1_13=1, var_1_1=0, var_1_3=0, var_1_4=0, var_1_5=1, var_1_6=0, var_1_7=1, var_1_8=-1, var_1_9=500] [L75] var_1_9 = __VERIFIER_nondet_short() [L76] CALL assume_abort_if_not(var_1_9 >= -16383) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=10, last_1_var_1_13=1, var_1_10=10, var_1_11=2, var_1_12=64, var_1_13=1, var_1_1=0, var_1_3=0, var_1_4=0, var_1_5=1, var_1_6=0, var_1_7=1, var_1_8=-1, var_1_9=42] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=10, last_1_var_1_13=1, var_1_10=10, var_1_11=2, var_1_12=64, var_1_13=1, var_1_1=0, var_1_3=0, var_1_4=0, var_1_5=1, var_1_6=0, var_1_7=1, var_1_8=-1, var_1_9=42] [L76] RET assume_abort_if_not(var_1_9 >= -16383) VAL [isInitial=1, last_1_var_1_10=10, last_1_var_1_13=1, var_1_10=10, var_1_11=2, var_1_12=64, var_1_13=1, var_1_1=0, var_1_3=0, var_1_4=0, var_1_5=1, var_1_6=0, var_1_7=1, var_1_8=-1, var_1_9=42] [L77] CALL assume_abort_if_not(var_1_9 <= 16383) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=10, last_1_var_1_13=1, var_1_10=10, var_1_11=2, var_1_12=64, var_1_13=1, var_1_1=0, var_1_3=0, var_1_4=0, var_1_5=1, var_1_6=0, var_1_7=1, var_1_8=-1, var_1_9=42] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=10, last_1_var_1_13=1, var_1_10=10, var_1_11=2, var_1_12=64, var_1_13=1, var_1_1=0, var_1_3=0, var_1_4=0, var_1_5=1, var_1_6=0, var_1_7=1, var_1_8=-1, var_1_9=42] [L77] RET assume_abort_if_not(var_1_9 <= 16383) VAL [isInitial=1, last_1_var_1_10=10, last_1_var_1_13=1, var_1_10=10, var_1_11=2, var_1_12=64, var_1_13=1, var_1_1=0, var_1_3=0, var_1_4=0, var_1_5=1, var_1_6=0, var_1_7=1, var_1_8=-1, var_1_9=42] [L78] var_1_11 = __VERIFIER_nondet_uchar() [L79] CALL assume_abort_if_not(var_1_11 >= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=10, last_1_var_1_13=1, var_1_10=10, var_1_11=2, var_1_12=64, var_1_13=1, var_1_1=0, var_1_3=0, var_1_4=0, var_1_5=1, var_1_6=0, var_1_7=1, var_1_8=-1, var_1_9=42] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=10, last_1_var_1_13=1, var_1_10=10, var_1_11=2, var_1_12=64, var_1_13=1, var_1_1=0, var_1_3=0, var_1_4=0, var_1_5=1, var_1_6=0, var_1_7=1, var_1_8=-1, var_1_9=42] [L79] RET assume_abort_if_not(var_1_11 >= 1) VAL [isInitial=1, last_1_var_1_10=10, last_1_var_1_13=1, var_1_10=10, var_1_11=2, var_1_12=64, var_1_13=1, var_1_1=0, var_1_3=0, var_1_4=0, var_1_5=1, var_1_6=0, var_1_7=1, var_1_8=-1, var_1_9=42] [L80] CALL assume_abort_if_not(var_1_11 <= 128) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=10, last_1_var_1_13=1, var_1_10=10, var_1_11=2, var_1_12=64, var_1_13=1, var_1_1=0, var_1_3=0, var_1_4=0, var_1_5=1, var_1_6=0, var_1_7=1, var_1_8=-1, var_1_9=42] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=10, last_1_var_1_13=1, var_1_10=10, var_1_11=2, var_1_12=64, var_1_13=1, var_1_1=0, var_1_3=0, var_1_4=0, var_1_5=1, var_1_6=0, var_1_7=1, var_1_8=-1, var_1_9=42] [L80] RET assume_abort_if_not(var_1_11 <= 128) VAL [isInitial=1, last_1_var_1_10=10, last_1_var_1_13=1, var_1_10=10, var_1_11=2, var_1_12=64, var_1_13=1, var_1_1=0, var_1_3=0, var_1_4=0, var_1_5=1, var_1_6=0, var_1_7=1, var_1_8=-1, var_1_9=42] [L81] var_1_12 = __VERIFIER_nondet_uchar() [L82] CALL assume_abort_if_not(var_1_12 >= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=10, last_1_var_1_13=1, var_1_10=10, var_1_11=2, var_1_12=2, var_1_13=1, var_1_1=0, var_1_3=0, var_1_4=0, var_1_5=1, var_1_6=0, var_1_7=1, var_1_8=-1, var_1_9=42] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=10, last_1_var_1_13=1, var_1_10=10, var_1_11=2, var_1_12=2, var_1_13=1, var_1_1=0, var_1_3=0, var_1_4=0, var_1_5=1, var_1_6=0, var_1_7=1, var_1_8=-1, var_1_9=42] [L82] RET assume_abort_if_not(var_1_12 >= 1) VAL [isInitial=1, last_1_var_1_10=10, last_1_var_1_13=1, var_1_10=10, var_1_11=2, var_1_12=2, var_1_13=1, var_1_1=0, var_1_3=0, var_1_4=0, var_1_5=1, var_1_6=0, var_1_7=1, var_1_8=-1, var_1_9=42] [L83] CALL assume_abort_if_not(var_1_12 <= 127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=10, last_1_var_1_13=1, var_1_10=10, var_1_11=2, var_1_12=2, var_1_13=1, var_1_1=0, var_1_3=0, var_1_4=0, var_1_5=1, var_1_6=0, var_1_7=1, var_1_8=-1, var_1_9=42] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=10, last_1_var_1_13=1, var_1_10=10, var_1_11=2, var_1_12=2, var_1_13=1, var_1_1=0, var_1_3=0, var_1_4=0, var_1_5=1, var_1_6=0, var_1_7=1, var_1_8=-1, var_1_9=42] [L83] RET assume_abort_if_not(var_1_12 <= 127) VAL [isInitial=1, last_1_var_1_10=10, last_1_var_1_13=1, var_1_10=10, var_1_11=2, var_1_12=2, var_1_13=1, var_1_1=0, var_1_3=0, var_1_4=0, var_1_5=1, var_1_6=0, var_1_7=1, var_1_8=-1, var_1_9=42] [L99] RET updateVariables() [L100] CALL step() [L39] COND FALSE !(last_1_var_1_13 >= -50) VAL [isInitial=1, last_1_var_1_10=10, last_1_var_1_13=1, var_1_10=10, var_1_11=2, var_1_12=2, var_1_13=1, var_1_1=0, var_1_3=0, var_1_4=0, var_1_5=1, var_1_6=0, var_1_7=1, var_1_8=-1, var_1_9=42] [L42] EXPR var_1_11 & var_1_12 VAL [isInitial=1, last_1_var_1_10=10, last_1_var_1_13=1, var_1_10=10, var_1_11=2, var_1_12=2, var_1_13=1, var_1_1=0, var_1_3=0, var_1_4=0, var_1_5=1, var_1_6=0, var_1_7=1, var_1_8=-1, var_1_9=42] [L42] signed long int stepLocal_0 = var_1_11 & var_1_12; [L43] COND TRUE \read(var_1_7) [L44] var_1_13 = ((((var_1_11) > (var_1_1)) ? (var_1_11) : (var_1_1))) VAL [isInitial=1, last_1_var_1_10=10, last_1_var_1_13=1, stepLocal_0=2, var_1_10=10, var_1_11=2, var_1_12=2, var_1_13=2, var_1_1=0, var_1_3=0, var_1_4=0, var_1_5=1, var_1_6=0, var_1_7=1, var_1_8=-1, var_1_9=42] [L50] COND TRUE \read(var_1_7) [L51] var_1_6 = (var_1_8 + var_1_9) VAL [isInitial=1, last_1_var_1_10=10, last_1_var_1_13=1, stepLocal_0=2, var_1_10=10, var_1_11=2, var_1_12=2, var_1_13=2, var_1_1=0, var_1_3=0, var_1_4=0, var_1_5=1, var_1_6=41, var_1_7=1, var_1_8=-1, var_1_9=42] [L53] EXPR last_1_var_1_10 >> var_1_1 VAL [isInitial=1, last_1_var_1_10=10, last_1_var_1_13=1, stepLocal_0=2, var_1_10=10, var_1_11=2, var_1_12=2, var_1_13=2, var_1_1=0, var_1_3=0, var_1_4=0, var_1_5=1, var_1_6=41, var_1_7=1, var_1_8=-1, var_1_9=42] [L53] EXPR var_1_8 << var_1_5 VAL [isInitial=1, last_1_var_1_10=10, last_1_var_1_13=1, stepLocal_0=2, var_1_10=10, var_1_11=2, var_1_12=2, var_1_13=2, var_1_1=0, var_1_3=0, var_1_4=0, var_1_5=1, var_1_6=41, var_1_7=1, var_1_8=-1, var_1_9=42] [L53] EXPR (last_1_var_1_10 >> var_1_1) ^ (var_1_8 << var_1_5) VAL [isInitial=1, last_1_var_1_10=10, last_1_var_1_13=1, stepLocal_0=2, var_1_10=10, var_1_11=2, var_1_12=2, var_1_13=2, var_1_1=0, var_1_3=0, var_1_4=0, var_1_5=1, var_1_6=41, var_1_7=1, var_1_8=-1, var_1_9=42] [L53] COND FALSE !((var_1_6 / (var_1_11 + var_1_12)) != ((last_1_var_1_10 >> var_1_1) ^ (var_1_8 << var_1_5))) [L56] var_1_10 = var_1_11 VAL [isInitial=1, last_1_var_1_10=10, last_1_var_1_13=1, stepLocal_0=2, var_1_10=2, var_1_11=2, var_1_12=2, var_1_13=2, var_1_1=0, var_1_3=0, var_1_4=0, var_1_5=1, var_1_6=41, var_1_7=1, var_1_8=-1, var_1_9=42] [L100] RET step() [L101] CALL, EXPR property() [L90] EXPR (((last_1_var_1_13 >= -50) ? (var_1_1 == ((unsigned short int) (((((var_1_3 + ((((var_1_4) < 0 ) ? -(var_1_4) : (var_1_4))))) > (var_1_5)) ? ((var_1_3 + ((((var_1_4) < 0 ) ? -(var_1_4) : (var_1_4))))) : (var_1_5))))) : 1) && (var_1_7 ? (var_1_6 == ((signed short int) (var_1_8 + var_1_9))) : 1)) && (((var_1_6 / (var_1_11 + var_1_12)) != ((last_1_var_1_10 >> var_1_1) ^ (var_1_8 << var_1_5))) ? (var_1_10 == ((unsigned long int) ((((var_1_12) < (var_1_4)) ? (var_1_12) : (var_1_4))))) : (var_1_10 == ((unsigned long int) var_1_11))) VAL [isInitial=1, last_1_var_1_10=10, last_1_var_1_13=1, var_1_10=2, var_1_11=2, var_1_12=2, var_1_13=2, var_1_1=0, var_1_3=0, var_1_4=0, var_1_5=1, var_1_6=41, var_1_7=1, var_1_8=-1, var_1_9=42] [L90] EXPR last_1_var_1_10 >> var_1_1 VAL [isInitial=1, last_1_var_1_10=10, last_1_var_1_13=1, var_1_10=2, var_1_11=2, var_1_12=2, var_1_13=2, var_1_1=0, var_1_3=0, var_1_4=0, var_1_5=1, var_1_6=41, var_1_7=1, var_1_8=-1, var_1_9=42] [L90] EXPR var_1_8 << var_1_5 VAL [isInitial=1, last_1_var_1_10=10, last_1_var_1_13=1, var_1_10=2, var_1_11=2, var_1_12=2, var_1_13=2, var_1_1=0, var_1_3=0, var_1_4=0, var_1_5=1, var_1_6=41, var_1_7=1, var_1_8=-1, var_1_9=42] [L90] EXPR (last_1_var_1_10 >> var_1_1) ^ (var_1_8 << var_1_5) VAL [isInitial=1, last_1_var_1_10=10, last_1_var_1_13=1, var_1_10=2, var_1_11=2, var_1_12=2, var_1_13=2, var_1_1=0, var_1_3=0, var_1_4=0, var_1_5=1, var_1_6=41, var_1_7=1, var_1_8=-1, var_1_9=42] [L90] EXPR (((last_1_var_1_13 >= -50) ? (var_1_1 == ((unsigned short int) (((((var_1_3 + ((((var_1_4) < 0 ) ? -(var_1_4) : (var_1_4))))) > (var_1_5)) ? ((var_1_3 + ((((var_1_4) < 0 ) ? -(var_1_4) : (var_1_4))))) : (var_1_5))))) : 1) && (var_1_7 ? (var_1_6 == ((signed short int) (var_1_8 + var_1_9))) : 1)) && (((var_1_6 / (var_1_11 + var_1_12)) != ((last_1_var_1_10 >> var_1_1) ^ (var_1_8 << var_1_5))) ? (var_1_10 == ((unsigned long int) ((((var_1_12) < (var_1_4)) ? (var_1_12) : (var_1_4))))) : (var_1_10 == ((unsigned long int) var_1_11))) VAL [isInitial=1, last_1_var_1_10=10, last_1_var_1_13=1, var_1_10=2, var_1_11=2, var_1_12=2, var_1_13=2, var_1_1=0, var_1_3=0, var_1_4=0, var_1_5=1, var_1_6=41, var_1_7=1, var_1_8=-1, var_1_9=42] [L90] EXPR ((((last_1_var_1_13 >= -50) ? (var_1_1 == ((unsigned short int) (((((var_1_3 + ((((var_1_4) < 0 ) ? -(var_1_4) : (var_1_4))))) > (var_1_5)) ? ((var_1_3 + ((((var_1_4) < 0 ) ? -(var_1_4) : (var_1_4))))) : (var_1_5))))) : 1) && (var_1_7 ? (var_1_6 == ((signed short int) (var_1_8 + var_1_9))) : 1)) && (((var_1_6 / (var_1_11 + var_1_12)) != ((last_1_var_1_10 >> var_1_1) ^ (var_1_8 << var_1_5))) ? (var_1_10 == ((unsigned long int) ((((var_1_12) < (var_1_4)) ? (var_1_12) : (var_1_4))))) : (var_1_10 == ((unsigned long int) var_1_11)))) && (var_1_7 ? (var_1_13 == ((unsigned long int) ((((var_1_11) > (var_1_1)) ? (var_1_11) : (var_1_1))))) : (((var_1_11 & var_1_12) != var_1_1) ? (var_1_13 == ((unsigned long int) var_1_12)) : 1)) VAL [isInitial=1, last_1_var_1_10=10, last_1_var_1_13=1, var_1_10=2, var_1_11=2, var_1_12=2, var_1_13=2, var_1_1=0, var_1_3=0, var_1_4=0, var_1_5=1, var_1_6=41, var_1_7=1, var_1_8=-1, var_1_9=42] [L90-L91] return ((((last_1_var_1_13 >= -50) ? (var_1_1 == ((unsigned short int) (((((var_1_3 + ((((var_1_4) < 0 ) ? -(var_1_4) : (var_1_4))))) > (var_1_5)) ? ((var_1_3 + ((((var_1_4) < 0 ) ? -(var_1_4) : (var_1_4))))) : (var_1_5))))) : 1) && (var_1_7 ? (var_1_6 == ((signed short int) (var_1_8 + var_1_9))) : 1)) && (((var_1_6 / (var_1_11 + var_1_12)) != ((last_1_var_1_10 >> var_1_1) ^ (var_1_8 << var_1_5))) ? (var_1_10 == ((unsigned long int) ((((var_1_12) < (var_1_4)) ? (var_1_12) : (var_1_4))))) : (var_1_10 == ((unsigned long int) var_1_11)))) && (var_1_7 ? (var_1_13 == ((unsigned long int) ((((var_1_11) > (var_1_1)) ? (var_1_11) : (var_1_1))))) : (((var_1_11 & var_1_12) != var_1_1) ? (var_1_13 == ((unsigned long int) var_1_12)) : 1)) ; [L101] RET, EXPR property() [L101] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, last_1_var_1_10=10, last_1_var_1_13=1, var_1_10=2, var_1_11=2, var_1_12=2, var_1_13=2, var_1_1=0, var_1_3=0, var_1_4=0, var_1_5=1, var_1_6=41, var_1_7=1, var_1_8=-1, var_1_9=42] [L19] reach_error() VAL [isInitial=1, last_1_var_1_10=10, last_1_var_1_13=1, var_1_10=2, var_1_11=2, var_1_12=2, var_1_13=2, var_1_1=0, var_1_3=0, var_1_4=0, var_1_5=1, var_1_6=41, var_1_7=1, var_1_8=-1, var_1_9=42] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 80 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 38.5s, OverallIterations: 23, TraceHistogramMax: 16, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 17.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2191 SdHoareTripleChecker+Valid, 9.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2178 mSDsluCounter, 10428 SdHoareTripleChecker+Invalid, 9.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 7720 mSDsCounter, 451 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2699 IncrementalHoareTripleChecker+Invalid, 3150 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 451 mSolverCounterUnsat, 2708 mSDtfsCounter, 2699 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 553 GetRequests, 403 SyntacticMatches, 2 SemanticMatches, 148 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 163 ImplicationChecksByTransitivity, 6.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2673occurred in iteration=17, InterpolantAutomatonStates: 141, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 3.0s AutomataMinimizationTime, 22 MinimizatonAttempts, 2231 StatesRemovedByMinimization, 21 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.3s SatisfiabilityAnalysisTime, 14.8s InterpolantComputationTime, 3049 NumberOfCodeBlocks, 3049 NumberOfCodeBlocksAsserted, 26 NumberOfCheckSat, 2902 ConstructedInterpolants, 0 QuantifiedInterpolants, 10153 SizeOfPredicates, 1 NumberOfNonLiveVariables, 532 ConjunctsInSsa, 12 ConjunctsInUnsatCore, 25 InterpolantComputations, 21 PerfectInterpolantSequences, 11940/12000 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-24 00:45:58,033 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff9b14d4-6dfc-48d9-91e6-a966d8bf8b83/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff9b14d4-6dfc-48d9-91e6-a966d8bf8b83/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff9b14d4-6dfc-48d9-91e6-a966d8bf8b83/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff9b14d4-6dfc-48d9-91e6-a966d8bf8b83/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff9b14d4-6dfc-48d9-91e6-a966d8bf8b83/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-32.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff9b14d4-6dfc-48d9-91e6-a966d8bf8b83/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff9b14d4-6dfc-48d9-91e6-a966d8bf8b83/bin/uautomizer-verify-LYvppIcaGC --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d4efba5d8035d5b89a6fee2af18255a7435db1834e066c2b81c99247161e78c7 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-24 00:46:01,007 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 00:46:01,148 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff9b14d4-6dfc-48d9-91e6-a966d8bf8b83/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-24 00:46:01,163 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 00:46:01,163 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-24 00:46:01,209 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 00:46:01,210 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-24 00:46:01,211 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-24 00:46:01,211 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-24 00:46:01,211 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-24 00:46:01,212 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 00:46:01,212 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-24 00:46:01,212 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 00:46:01,213 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 00:46:01,213 INFO L153 SettingsManager]: * Use SBE=true [2024-11-24 00:46:01,213 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 00:46:01,213 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 00:46:01,213 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-24 00:46:01,214 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-24 00:46:01,214 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 00:46:01,214 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 00:46:01,214 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 00:46:01,214 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 00:46:01,214 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-24 00:46:01,214 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-24 00:46:01,215 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-24 00:46:01,215 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-24 00:46:01,215 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 00:46:01,215 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 00:46:01,215 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 00:46:01,215 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-24 00:46:01,215 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 00:46:01,215 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 00:46:01,215 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 00:46:01,216 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:46:01,216 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 00:46:01,216 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 00:46:01,216 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 00:46:01,216 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 00:46:01,216 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:46:01,216 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 00:46:01,217 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 00:46:01,217 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-24 00:46:01,217 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 00:46:01,217 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-24 00:46:01,218 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-24 00:46:01,218 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-24 00:46:01,218 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-24 00:46:01,218 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-24 00:46:01,218 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-24 00:46:01,218 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff9b14d4-6dfc-48d9-91e6-a966d8bf8b83/bin/uautomizer-verify-LYvppIcaGC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d4efba5d8035d5b89a6fee2af18255a7435db1834e066c2b81c99247161e78c7 [2024-11-24 00:46:01,728 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 00:46:01,746 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 00:46:01,748 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 00:46:01,752 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 00:46:01,752 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 00:46:01,754 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff9b14d4-6dfc-48d9-91e6-a966d8bf8b83/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-32.i [2024-11-24 00:46:04,952 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff9b14d4-6dfc-48d9-91e6-a966d8bf8b83/bin/uautomizer-verify-LYvppIcaGC/data/2ab490249/9df8701618b34153bc2d37213c200df6/FLAG4d4f349f7 [2024-11-24 00:46:05,234 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 00:46:05,235 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff9b14d4-6dfc-48d9-91e6-a966d8bf8b83/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-32.i [2024-11-24 00:46:05,245 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff9b14d4-6dfc-48d9-91e6-a966d8bf8b83/bin/uautomizer-verify-LYvppIcaGC/data/2ab490249/9df8701618b34153bc2d37213c200df6/FLAG4d4f349f7 [2024-11-24 00:46:05,265 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff9b14d4-6dfc-48d9-91e6-a966d8bf8b83/bin/uautomizer-verify-LYvppIcaGC/data/2ab490249/9df8701618b34153bc2d37213c200df6 [2024-11-24 00:46:05,268 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 00:46:05,270 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 00:46:05,272 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 00:46:05,272 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 00:46:05,277 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 00:46:05,277 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:46:05" (1/1) ... [2024-11-24 00:46:05,280 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1dc0504e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:46:05, skipping insertion in model container [2024-11-24 00:46:05,280 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:46:05" (1/1) ... [2024-11-24 00:46:05,298 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 00:46:05,443 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff9b14d4-6dfc-48d9-91e6-a966d8bf8b83/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-32.i[915,928] [2024-11-24 00:46:05,495 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 00:46:05,523 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 00:46:05,534 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff9b14d4-6dfc-48d9-91e6-a966d8bf8b83/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-32.i[915,928] [2024-11-24 00:46:05,562 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 00:46:05,588 INFO L204 MainTranslator]: Completed translation [2024-11-24 00:46:05,588 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:46:05 WrapperNode [2024-11-24 00:46:05,589 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 00:46:05,590 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 00:46:05,590 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 00:46:05,591 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 00:46:05,599 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:46:05" (1/1) ... [2024-11-24 00:46:05,611 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:46:05" (1/1) ... [2024-11-24 00:46:05,637 INFO L138 Inliner]: procedures = 27, calls = 29, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 106 [2024-11-24 00:46:05,638 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 00:46:05,639 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 00:46:05,639 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 00:46:05,639 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 00:46:05,650 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:46:05" (1/1) ... [2024-11-24 00:46:05,650 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:46:05" (1/1) ... [2024-11-24 00:46:05,654 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:46:05" (1/1) ... [2024-11-24 00:46:05,677 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-24 00:46:05,677 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:46:05" (1/1) ... [2024-11-24 00:46:05,677 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:46:05" (1/1) ... [2024-11-24 00:46:05,698 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:46:05" (1/1) ... [2024-11-24 00:46:05,699 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:46:05" (1/1) ... [2024-11-24 00:46:05,707 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:46:05" (1/1) ... [2024-11-24 00:46:05,714 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:46:05" (1/1) ... [2024-11-24 00:46:05,715 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:46:05" (1/1) ... [2024-11-24 00:46:05,722 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 00:46:05,726 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 00:46:05,726 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 00:46:05,726 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 00:46:05,728 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:46:05" (1/1) ... [2024-11-24 00:46:05,742 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:46:05,762 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff9b14d4-6dfc-48d9-91e6-a966d8bf8b83/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:46:05,780 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff9b14d4-6dfc-48d9-91e6-a966d8bf8b83/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-24 00:46:05,788 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff9b14d4-6dfc-48d9-91e6-a966d8bf8b83/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-24 00:46:05,825 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 00:46:05,826 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-24 00:46:05,826 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-24 00:46:05,827 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-24 00:46:05,827 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 00:46:05,827 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 00:46:05,940 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 00:46:05,943 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 00:46:06,412 INFO L? ?]: Removed 11 outVars from TransFormulas that were not future-live. [2024-11-24 00:46:06,412 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 00:46:06,429 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 00:46:06,429 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-24 00:46:06,430 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:46:06 BoogieIcfgContainer [2024-11-24 00:46:06,431 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 00:46:06,434 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-24 00:46:06,435 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-24 00:46:06,442 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-24 00:46:06,443 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 12:46:05" (1/3) ... [2024-11-24 00:46:06,444 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29bcc603 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:46:06, skipping insertion in model container [2024-11-24 00:46:06,445 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:46:05" (2/3) ... [2024-11-24 00:46:06,445 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29bcc603 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:46:06, skipping insertion in model container [2024-11-24 00:46:06,445 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:46:06" (3/3) ... [2024-11-24 00:46:06,446 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-1loop_file-32.i [2024-11-24 00:46:06,469 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-24 00:46:06,471 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_loopvsstraightlinecode_25-1loop_file-32.i that has 2 procedures, 50 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-24 00:46:06,562 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 00:46:06,582 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@1b836776, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 00:46:06,583 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-24 00:46:06,589 INFO L276 IsEmpty]: Start isEmpty. Operand has 50 states, 31 states have (on average 1.3225806451612903) internal successors, (41), 32 states have internal predecessors, (41), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-24 00:46:06,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-24 00:46:06,639 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:46:06,640 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:46:06,640 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:46:06,649 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:46:06,649 INFO L85 PathProgramCache]: Analyzing trace with hash 1057887871, now seen corresponding path program 1 times [2024-11-24 00:46:06,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:46:06,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2097900403] [2024-11-24 00:46:06,662 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:46:06,662 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:46:06,662 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff9b14d4-6dfc-48d9-91e6-a966d8bf8b83/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:46:06,666 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff9b14d4-6dfc-48d9-91e6-a966d8bf8b83/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:46:06,669 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff9b14d4-6dfc-48d9-91e6-a966d8bf8b83/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-24 00:46:06,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:46:06,871 INFO L256 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-24 00:46:06,884 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:46:06,922 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 450 trivial. 0 not checked. [2024-11-24 00:46:06,923 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:46:06,923 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:46:06,924 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2097900403] [2024-11-24 00:46:06,924 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2097900403] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:46:06,925 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:46:06,925 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 00:46:06,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709227445] [2024-11-24 00:46:06,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:46:06,932 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-24 00:46:06,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:46:06,954 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-24 00:46:06,955 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-24 00:46:06,957 INFO L87 Difference]: Start difference. First operand has 50 states, 31 states have (on average 1.3225806451612903) internal successors, (41), 32 states have internal predecessors, (41), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-24 00:46:06,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:46:06,988 INFO L93 Difference]: Finished difference Result 97 states and 159 transitions. [2024-11-24 00:46:06,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-24 00:46:06,990 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) Word has length 103 [2024-11-24 00:46:06,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:46:06,996 INFO L225 Difference]: With dead ends: 97 [2024-11-24 00:46:06,997 INFO L226 Difference]: Without dead ends: 46 [2024-11-24 00:46:07,001 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-24 00:46:07,004 INFO L435 NwaCegarLoop]: 70 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:46:07,005 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:46:07,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2024-11-24 00:46:07,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2024-11-24 00:46:07,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 28 states have (on average 1.2142857142857142) internal successors, (34), 28 states have internal predecessors, (34), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-24 00:46:07,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 66 transitions. [2024-11-24 00:46:07,052 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 66 transitions. Word has length 103 [2024-11-24 00:46:07,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:46:07,053 INFO L471 AbstractCegarLoop]: Abstraction has 46 states and 66 transitions. [2024-11-24 00:46:07,054 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-24 00:46:07,054 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 66 transitions. [2024-11-24 00:46:07,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-24 00:46:07,057 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:46:07,058 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:46:07,068 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff9b14d4-6dfc-48d9-91e6-a966d8bf8b83/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-24 00:46:07,258 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff9b14d4-6dfc-48d9-91e6-a966d8bf8b83/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:46:07,259 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:46:07,259 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:46:07,259 INFO L85 PathProgramCache]: Analyzing trace with hash -14354817, now seen corresponding path program 1 times [2024-11-24 00:46:07,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:46:07,260 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1838783675] [2024-11-24 00:46:07,260 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:46:07,261 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:46:07,261 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff9b14d4-6dfc-48d9-91e6-a966d8bf8b83/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:46:07,263 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff9b14d4-6dfc-48d9-91e6-a966d8bf8b83/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:46:07,264 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff9b14d4-6dfc-48d9-91e6-a966d8bf8b83/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-24 00:46:07,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:46:07,446 INFO L256 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-24 00:46:07,454 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:46:07,520 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-24 00:46:07,520 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:46:07,520 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:46:07,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1838783675] [2024-11-24 00:46:07,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1838783675] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:46:07,521 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:46:07,521 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:46:07,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [582626695] [2024-11-24 00:46:07,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:46:07,524 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:46:07,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:46:07,528 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:46:07,528 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:46:07,528 INFO L87 Difference]: Start difference. First operand 46 states and 66 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-24 00:46:07,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:46:07,627 INFO L93 Difference]: Finished difference Result 113 states and 160 transitions. [2024-11-24 00:46:07,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:46:07,631 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 103 [2024-11-24 00:46:07,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:46:07,635 INFO L225 Difference]: With dead ends: 113 [2024-11-24 00:46:07,637 INFO L226 Difference]: Without dead ends: 70 [2024-11-24 00:46:07,638 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:46:07,640 INFO L435 NwaCegarLoop]: 64 mSDtfsCounter, 31 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:46:07,641 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 119 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 00:46:07,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2024-11-24 00:46:07,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 67. [2024-11-24 00:46:07,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 42 states have (on average 1.1904761904761905) internal successors, (50), 43 states have internal predecessors, (50), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 21 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-24 00:46:07,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 94 transitions. [2024-11-24 00:46:07,671 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 94 transitions. Word has length 103 [2024-11-24 00:46:07,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:46:07,676 INFO L471 AbstractCegarLoop]: Abstraction has 67 states and 94 transitions. [2024-11-24 00:46:07,676 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-24 00:46:07,676 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 94 transitions. [2024-11-24 00:46:07,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-24 00:46:07,682 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:46:07,683 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:46:07,695 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff9b14d4-6dfc-48d9-91e6-a966d8bf8b83/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-24 00:46:07,883 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff9b14d4-6dfc-48d9-91e6-a966d8bf8b83/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:46:07,883 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:46:07,884 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:46:07,884 INFO L85 PathProgramCache]: Analyzing trace with hash -71613119, now seen corresponding path program 1 times [2024-11-24 00:46:07,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:46:07,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1966243392] [2024-11-24 00:46:07,885 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:46:07,885 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:46:07,885 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff9b14d4-6dfc-48d9-91e6-a966d8bf8b83/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:46:07,887 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff9b14d4-6dfc-48d9-91e6-a966d8bf8b83/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:46:07,890 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff9b14d4-6dfc-48d9-91e6-a966d8bf8b83/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-24 00:46:08,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:46:08,043 INFO L256 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-24 00:46:08,062 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:46:08,567 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-24 00:46:08,568 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:46:08,568 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:46:08,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1966243392] [2024-11-24 00:46:08,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1966243392] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:46:08,569 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:46:08,569 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:46:08,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848357174] [2024-11-24 00:46:08,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:46:08,570 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:46:08,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:46:08,571 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:46:08,572 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:46:08,573 INFO L87 Difference]: Start difference. First operand 67 states and 94 transitions. Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-24 00:46:08,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:46:08,812 INFO L93 Difference]: Finished difference Result 212 states and 297 transitions. [2024-11-24 00:46:08,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:46:08,815 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 103 [2024-11-24 00:46:08,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:46:08,823 INFO L225 Difference]: With dead ends: 212 [2024-11-24 00:46:08,823 INFO L226 Difference]: Without dead ends: 148 [2024-11-24 00:46:08,824 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:46:08,825 INFO L435 NwaCegarLoop]: 72 mSDtfsCounter, 47 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 190 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-24 00:46:08,825 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 190 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-24 00:46:08,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2024-11-24 00:46:08,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 128. [2024-11-24 00:46:08,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128 states, 79 states have (on average 1.1898734177215189) internal successors, (94), 81 states have internal predecessors, (94), 44 states have call successors, (44), 4 states have call predecessors, (44), 4 states have return successors, (44), 42 states have call predecessors, (44), 44 states have call successors, (44) [2024-11-24 00:46:08,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 182 transitions. [2024-11-24 00:46:08,873 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 182 transitions. Word has length 103 [2024-11-24 00:46:08,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:46:08,874 INFO L471 AbstractCegarLoop]: Abstraction has 128 states and 182 transitions. [2024-11-24 00:46:08,874 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-24 00:46:08,874 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 182 transitions. [2024-11-24 00:46:08,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-24 00:46:08,876 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:46:08,876 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:46:08,889 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff9b14d4-6dfc-48d9-91e6-a966d8bf8b83/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-24 00:46:09,077 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff9b14d4-6dfc-48d9-91e6-a966d8bf8b83/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:46:09,077 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:46:09,078 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:46:09,078 INFO L85 PathProgramCache]: Analyzing trace with hash 608445251, now seen corresponding path program 1 times [2024-11-24 00:46:09,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:46:09,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1538186079] [2024-11-24 00:46:09,079 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:46:09,079 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:46:09,079 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff9b14d4-6dfc-48d9-91e6-a966d8bf8b83/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:46:09,083 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff9b14d4-6dfc-48d9-91e6-a966d8bf8b83/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:46:09,088 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff9b14d4-6dfc-48d9-91e6-a966d8bf8b83/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-24 00:46:09,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:46:09,223 INFO L256 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-24 00:46:09,235 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:58:00,820 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2024-11-24 00:58:00,821 INFO L312 TraceCheckSpWp]: Computing backward predicates...